Guide for Authors
Vacuum is an international rapid publications journal with a focus
on short communication. All papers are peer-reviewed, with the review process for short communication geared towards very fast turnaround
times. The journal also published full research papers, thematic issues and selected papers from leading conferences. A report in Vacuum
should represent a major advance in an area that involves a controlled environment at pressures of one atmosphere or below.
The scope
of the journal includes:
1. Vacuum; original developments in vacuum pumping and instrumentation, vacuum measurement, vacuum gas dynamics,
gas-surface interactions, surface treatment for UHV applications and low outgassing, vacuum melting and sintering. Technology and solutions
for large-scale facilities (e.g., particle accelerators and fusion devices). New instrumentation ( e.g., detectors and electron microscopes).
2. Plasma science; advances in PVD, CVD, plasma-assisted CVD, ion sources, deposition processes and analysis.
3. Surface science;
surface engineering, surface chemistry, surface analysis, crystal growth, ion-surface interactions and etching, nanometer-scale processing,
surface modification.
4. Materials science; novel functional or structural materials. Metals, ceramics, and polymers. Experiments,
simulations, and modelling for understanding structure-property relationships. Thin films and coatings. Nanostructures and ion implantation.
Types of Paper
Vacuum will consider three types of peer-reviewed manuscripts:
1. Rapid Communications:
should have the format of a letter (main text without headings) and are intended as brief reports of significant, original and timely
research results, which require rapid publication. The submitted manuscripts should be kept concise and short; the number of figures
and tables should also be kept to a minimum. See below for details. In considering a manuscript for publication, particular attention
will be given to the originality of the research and the desirability of speedy publication and the clarity of the presentation. The
editors will aim for a rapid review process and only manuscripts that need no changes or only minor revisions will be accepted.
2.
Full Research Papers: should be full reports including in-depth analysis and extensive discussion. The described research should be complete
and thorough, and there are no limitations to text length or number of figures/tables, as long as they add to the understanding of the
described research. Criteria for publication are completeness, novelty, and clarity. Manuscripts may be accepted after major revisions.
The editors will aim to apply a thorough review process.
3. Besides these two types of manuscripts, Vacuum will publish reviews,
thematic issues and a selection of conference papers. These contributions must have the Full Research Paper structure. Such contributions
must be prepared in consultation with the special issues editor and can only be submitted after invitation by the guest editor for that
issue.
Page charges
This journal has no page charges.
Ethics in publishing
For information
on Ethics in publishing and Ethical guidelines for journal publication see
http://www.elsevier.com/publishingethics and
http://www.elsevier.com/ethicalguidelines.
Conflict of interest
All
authors are requested to disclose any actual or potential conflict of interest including any financial, personal or other relationships
with other people or organizations within three years of beginning the submitted work that could inappropriately influence, or be perceived
to influence, their work. See also
http://www.elsevier.com/conflictsofinterest.
Submission declaration and verification
Submission of an article implies that the work described has not been published
previously (except in the form of an abstract or as part of a published lecture or academic thesis), that it is not under consideration
for publication elsewhere, that its publication is approved by all authors and tacitly or explicitly by the responsible authorities where
the work was carried out, and that, if accepted, it will not be published elsewhere in the same form, in English or in any other language,
including electronically without the written consent of the copyright-holder. To verify originality, your article may be checked by the
originality detection software iThenticate. See also
http://www.elsevier.com/editors/plagdetect.
Changes to authorship
This policy concerns the addition, deletion, or rearrangement of author names in the
authorship of accepted manuscripts:
Before the accepted manuscript is published in an online issue: Requests to add or remove
an author, or to rearrange the author names, must be sent to the Journal Manager from the corresponding author of the accepted manuscript
and must include: (a) the reason the name should be added or removed, or the author names rearranged and (b) written confirmation (e-mail,
fax, letter) from all authors that they agree with the addition, removal or rearrangement. In the case of addition or removal of authors,
this includes confirmation from the author being added or removed. Requests that are not sent by the corresponding author will be forwarded
by the Journal Manager to the corresponding author, who must follow the procedure as described above. Note that: (1) Journal Managers
will inform the Journal Editors of any such requests and (2) publication of the accepted manuscript in an online issue is suspended until
authorship has been agreed.
After the accepted manuscript is published in an online issue: Any requests to add, delete, or
rearrange author names in an article published in an online issue will follow the same policies as noted above and result in a corrigendum.
Copyright
Upon acceptance of an article, authors will be asked to complete a 'Journal Publishing Agreement'
(for more information on this and copyright see
http://www.elsevier.com/copyright). Acceptance of the agreement will ensure
the widest possible dissemination of information. An e-mail will be sent to the corresponding author confirming receipt of the manuscript
together with a 'Journal Publishing Agreement' form or a link to the online version of this agreement.
Subscribers may reproduce
tables of contents or prepare lists of articles including abstracts for internal circulation within their institutions. Permission of
the Publisher is required for resale or distribution outside the institution and for all other derivative works, including compilations
and translations (please consult
http://www.elsevier.com/permissions). If excerpts from other copyrighted works are included,
the author(s) must obtain written permission from the copyright owners and credit the source(s) in the article. Elsevier has preprinted
forms for use by authors in these cases: please consult
http://www.elsevier.com/permissions.
Retained author rights
As an author you (or your employer or institution) retain certain rights; for details
you are referred to:
http://www.elsevier.com/authorsrights.
Role of the
funding source
You are requested to identify who provided financial support for the conduct of the research and/or preparation
of the article and to briefly describe the role of the sponsor(s), if any, in study design; in the collection, analysis and interpretation
of data; in the writing of the report; and in the decision to submit the article for publication. If the funding source(s) had no such
involvement then this should be stated. Please see
http://www.elsevier.com/funding.
Funding body agreements and policies
Elsevier has established agreements and developed policies to allow authors whose
articles appear in journals published by Elsevier, to comply with potential manuscript archiving requirements as specified as conditions
of their grant awards. To learn more about existing agreements and policies please visit
http://www.elsevier.com/fundingbodies.
Open access
This journal offers you the option of making your article freely available to all via the ScienceDirect
platform. To prevent any conflict of interest, you can only make this choice after receiving notification that your article has been
accepted for publication. The fee of $3,000 excludes taxes and other potential author fees such as color charges. In some cases, institutions
and funding bodies have entered into agreement with Elsevier to meet these fees on behalf of their authors. Details of these agreements
are available at
http://www.elsevier.com/fundingbodies. Authors of accepted articles, who wish to take advantage of this
option, should complete and submit the order form (available at
http://www.elsevier.com/locate/openaccessform.pdf). Whatever
access option you choose, you retain many rights as an author, including the right to post a revised personal version of your article
on your own website. More information can be found here:
http://www.elsevier.com/authorsrights.
Language and language services
Please write your text in good English (American or British usage is accepted,
but not a mixture of these). Authors who require information about language editing and copyediting services pre- and post-submission
please visit
http://webshop.elsevier.com/languageservices
or our customer support site at
http://support.elsevier.com
for more information.
Submission
Submission to this journal proceeds totally
online and you will be guided stepwise through the creation and uploading of your files. The system automatically converts source files
to a single PDF file of the article, which is used in the peer-review process. Please note that even though manuscript source files are
converted to PDF files at submission for the review process, these source files are needed for further processing after acceptance. All
correspondence, including notification of the Editor's decision and requests for revision, takes place by e-mail removing the need for
a paper trail.
Referees
For Full Research Papers, please submit,
with the manuscript, the names, addresses and e-mail addresses of three potential referees. Note that the editor retains the sole right
to decide whether or not the suggested reviewers are used.
Additional information
Please ensure that acronyms and their full version appear in the main text when first used, but only one of these (usually the
acronym) appears in the title.
Use of wordprocessing software
It is important that the file be saved in the native format of the wordprocessor
used. The text should be in single-column format. Keep the layout of the text as simple as possible. Most formatting codes will be removed
and replaced on processing the article. In particular, do not use the wordprocessor's options to justify text or to hyphenate words.
However, do use bold face, italics, subscripts, superscripts etc. When preparing tables, if you are using a table grid, use only one
grid for each individual table and not a grid for each row. If no grid is used, use tabs, not spaces, to align columns. The electronic
text should be prepared in a way very similar to that of conventional manuscripts (see also the Guide to Publishing with Elsevier:
http://www.elsevier.com/guidepublication).
Note that source files of figures, tables and text graphics will be required whether or not you embed your figures in the text. See also
the section on Electronic artwork.
To avoid unnecessary errors you are strongly advised to use the 'spell-check' and 'grammar-check'
functions of your wordprocessor.
Article Structure
Follow this order
when submitting manuscripts: Title, Authors, Affiliations, Abstract, Keywords, Main text, Acknowledgements, Appendix, References, Figure
Captions and then Tables. For submission via the website you are requested to import low-resolution images into the article at the approximate
location you wish them to appear. Thus the PDF which is created for refereeing purposes will contain all necessary information. In addition
you will be asked to separately upload high quality images. Collate acknowledgements in a separate section at the end of the article
and do not include them on the title page, as a footnote to the title or otherwise.
Text Layout
Use double spacing and
wide (3 cm) margins. (Avoid full justification, i.e., do not use a constant right-hand margin.) Ensure that each new paragraph is clearly
indicated. Present tables, figures and figure legends at the point they will appear in the manuscript. If possible, consult a recent
issue of the journal to become familiar with layout and conventions. Number all pages consecutively, use 12 or 10 pt font size and standard
fonts.
Subdivision Main Text:
This journal accepts two different types
of unsolicited manuscripts with different subdivision of text: Rapid Communications (Letters) and Full Research Papers.
1. Rapid Communications
Rapid Communications should be kept concise and short, the number of figures and tables should also be kept to a minimum. The main text
of the manuscripts should not exceed 2,000 words and must not exceed 2,500 words, and the number of combined tables/images/figures should
not exceed 5. Abstract should contain less than 150 words. The main text should not contain any headings. The main text should end with
a concluding statement and optional acknowledgement.
2. Full Research Papers
The described research should be complete and thorough,
and there are no limitations to text or number of figures/tables, as long as they add to the understanding of the described research.
The main text of your article should be divided into clearly defined and numbered sections with appropriate headings (Introduction, Materials
and Methods, Theory/Calculation, Results, Discussion, Conclusions). Subsections should be numbered 1.1 (then 1.1.1, 1.1.2, ...), 1.2,
etc. (the abstract is not included in section numbering). Use this numbering also for internal cross-referencing: do not just refer to
'the text'. Any subsection may be given a brief heading. Each heading should appear on its own separate line.
Introduction
State the objectives of the work and provide an adequate background, avoiding a detailed
literature survey or a summary of the results.
Material and methods
Provide
sufficient detail to allow the work to be reproduced. Methods already published should be indicated by a reference: only relevant modifications
should be described.
Theory/calculation
A Theory section should extend,
not repeat, the background to the article already dealt with in the Introduction and lay the foundation for further work. In contrast,
a Calculation section represents a practical development from a theoretical basis.
Results
Results should be clear and concise.
Discussion
This should explore
the significance of the results of the work, not repeat them. A combined Results and Discussion section is often appropriate. Avoid extensive
citations and discussion of published literature.
Conclusions
The
main conclusions of the study may be presented in a short Conclusions section, which may stand alone or form a subsection of a Discussion
or Results and Discussion section.
Essential title page information
•
Title.
Concise and informative. Titles are often used in information-retrieval systems. Avoid abbreviations and formulae
where possible.
•
Author names and affiliations.
Where the family name may be ambiguous (e.g., a double name),
please indicate this clearly. Present the authors' affiliation addresses (where the actual work was done) below the names. Indicate all
affiliations with a lower-case superscript letter immediately after the author's name and in front of the appropriate address. Provide
the full postal address of each affiliation, including the country name and, if available, the e-mail address of each author.
•
Corresponding author.
Clearly indicate who will handle correspondence at all stages of refereeing and publication, also
post-publication.
Ensure that telephone and fax numbers (with country and area code) are provided in addition to the e-mail address
and the complete postal address. Contact details must be kept up to date by the corresponding author.
•
Present/permanent
address.
If an author has moved since the work described in the article was done, or was visiting at the time, a 'Present address'
(or 'Permanent address') may be indicated as a footnote to that author's name. The address at which the author actually did the work
must be retained as the main, affiliation address. Superscript Arabic numerals are used for such footnotes.
Abstract
A self-contained abstract of up to 150 words for Rapid Communications (Letters) and 200 words for
Full Research Papers, outlining in a single paragraph the purpose of the research, the principal results and major conclusions. An abstract
is often presented separate from the article, so it must be able to stand alone. For this reason, references should be avoided, but if
essential, they must be cited in full, without reference to the reference list. Also, non-standard or uncommon abbreviations should be
avoided, but if essential they must be defined at their first mention in the abstract itself.
Graphical abstract
A Graphical abstract is optional and should summarize the contents of the article in a concise, pictorial
form designed to capture the attention of a wide readership online. Authors must provide images that clearly represent the work described
in the article. Graphical abstracts should be submitted as a separate file in the online submission system. Image size: Please provide
an image with a minimum of 531 × 1328 pixels (h × w) or proportionally more. The image should be readable at a size of 5 × 13 cm using a regular screen resolution of 96 dpi. Preferred file types: TIFF, EPS, PDF or MS Office files. See
http://www.elsevier.com/graphicalabstracts
for examples.
Authors can make use of Elsevier's Illustration and Enhancement service to ensure the best presentation of their images
also in accordance with all technical requirements:
Illustration
Service.
Highlights
Highlights are mandatory for this journal.
They consist of a short collection of bullet points that convey the core findings of the article and should be submitted in a separate
file in the online submission system. Please use 'Highlights' in the file name and include 3 to 5 bullet points (maximum 85 characters,
including spaces, per bullet point). See
http://www.elsevier.com/highlights for examples.
Keywords
Immediately after the abstract, provide a maximum of 6 keywords, using British spelling and avoiding
general and plural terms and multiple concepts (avoid, for example, 'and', 'of'). Be sparing with abbreviations: only abbreviations firmly
established in the field may be eligible. These keywords will be used for indexing purposes.
Acknowledgements
Collate acknowledgements in a separate section at the end of the article before the references and do
not, therefore, include them on the title page, as a footnote to the title or otherwise. List here those individuals who provided help
during the research (e.g., providing language help, writing assistance or proof reading the article, etc.).
Math formulae
Present simple formulae in the line of normal text where possible and use the solidus (/)
instead of a horizontal line for small fractional terms, e.g., X/Y. In principle, variables are to be presented in italics. Powers of
e are often more conveniently denoted by exp. Number consecutively any equations that have to be displayed separately from the text (if
referred to explicitly in the text).
Footnotes
Footnotes should be used
sparingly. Number them consecutively throughout the article, using superscript Arabic numbers. Many wordprocessors build footnotes into
the text, and this feature may be used. Should this not be the case, indicate the position of footnotes in the text and present the footnotes
themselves separately at the end of the article. Do not include footnotes in the Reference list.
Table footnotes
Indicate
each footnote in a table with a superscript lowercase letter.
Artwork
Electronic artwork
General points
• Make sure you use uniform lettering and sizing
of your original artwork.
• Save text in illustrations as 'graphics' or enclose the font.
• Only use the following
fonts in your illustrations: Arial, Courier, Times, Symbol.
• Number the illustrations according to their sequence in the text.
• Use a logical naming convention for your artwork files.
• Provide captions to illustrations separately.
•
Produce images near to the desired size of the printed version.
• Submit each figure as a separate file.
A detailed guide
on electronic artwork is available on our website:
http://www.elsevier.com/artworkinstructions
You are urged
to visit this site; some excerpts from the detailed information are given here.
Formats
Regardless of the application
used, when your electronic artwork is finalised, please 'save as' or convert the images to one of the following formats (note the resolution
requirements for line drawings, halftones, and line/halftone combinations given below):
EPS: Vector drawings. Embed the font or save
the text as 'graphics'.
TIFF: Color or grayscale photographs (halftones): always use a minimum of 300 dpi.
TIFF: Bitmapped line
drawings: use a minimum of 1000 dpi.
TIFF: Combinations bitmapped line/half-tone (color or grayscale): a minimum of 500 dpi is required.
If your electronic artwork is created in a Microsoft Office application (Word, PowerPoint, Excel) then please supply 'as is'.
Please
do not:
• Supply files that are optimised for screen use (e.g., GIF, BMP, PICT, WPG); the resolution is too low;
•
Supply files that are too low in resolution;
• Submit graphics that are disproportionately large for the content.
Color artwork
Please make sure that artwork files are in an acceptable format (TIFF, EPS or MS Office
files) and with the correct resolution. If, together with your accepted article, you submit usable color figures then Elsevier will ensure,
at no additional charge, that these figures will appear in color on the Web (e.g., ScienceDirect and other sites) regardless of whether
or not these illustrations are reproduced in color in the printed version.
For color reproduction in print, you will receive information
regarding the costs from Elsevier after receipt of your accepted article. Please indicate your preference for color: in print or
on the Web only. For further information on the preparation of electronic artwork, please see
http://www.elsevier.com/artworkinstructions.
Please note: Because of technical complications which can arise by converting color figures to 'gray scale' (for the printed version
should you not opt for color in print) please submit in addition usable black and white versions of all the color illustrations.
Figure captions
Ensure that each illustration has a caption. Supply captions separately, not attached
to the figure. A caption should comprise a brief title (
not on the figure itself) and a description of the illustration. Keep
text in the illustrations themselves to a minimum but explain all symbols and abbreviations used.
Tables
Ensure that each table has a caption. Supply captions separately, not attached to the table. Number tables consecutively
in accordance with their appearance in the text. Place footnotes to tables below the table body and indicate them with superscript lowercase
letters. Avoid vertical rules. Be sparing in the use of tables and ensure that the data presented in tables do not duplicate results
described elsewhere in the article.
References
Citation in text
Please ensure that every reference cited in the text is also present in the reference
list (and vice versa). Any references cited in the abstract must be given in full. Unpublished results and personal communications are
not recommended in the reference list, but may be mentioned in the text. If these references are included in the reference list they
should follow the standard reference style of the journal and should include a substitution of the publication date with either 'Unpublished
results' or 'Personal communication'. Citation of a reference as 'in press' implies that the item has been accepted for publication.
Web references
As a minimum, the full URL should be given and the date when the reference was last
accessed. Any further information, if known (DOI, author names, dates, reference to a source publication, etc.), should also be given.
Web references can be listed separately (e.g., after the reference list) under a different heading if desired, or can be included in
the reference list.
References in a special issue
Please ensure that
the words 'this issue' are added to any references in the list (and any citations in the text) to other articles in the same Special
Issue.
Reference style
Text: Indicate references by number(s)
in square brackets in line with the text. The actual authors can be referred to, but the reference number(s) must always be given.
Example:
'..... as demonstrated [3,6]. Barnaby and Jones [8] obtained a different result ....'
List: Number the references (numbers
in square brackets) in the list in the order in which they appear in the text.
Examples:
Reference to a journal publication:
[1] J. van der Geer, J.A.J. Hanraads, R.A. Lupton, J. Sci. Commun. 163 (2010) 51–59.
Reference to a book:
[2] W. Strunk
Jr., E.B. White, The Elements of Style, fourth ed., Longman, New York, 2000.
Reference to a chapter in an edited book:
[3] G.R.
Mettam, L.B. Adams, in: B.S. Jones, R.Z. Smith (Eds.), Introduction to the Electronic Age, E-Publishing, Inc. New York, 2009, pp. 281–304.
Journal abbreviations source
Journal names should be abbreviated according to
Index Medicus journal
abbreviations:
http://www.nlm.nih.gov/tsd/serials/lji.html;
List of title word abbreviations:
http://www.issn.org/2-22661-LTWA-online.php;
CAS (Chemical Abstracts Service):
http://www.cas.org/sent.html.
Video
data
Elsevier accepts video material and animation sequences to support and enhance your scientific research. Authors who
have video or animation files that they wish to submit with their article are strongly encouraged to include these within the body of
the article. This can be done in the same way as a figure or table by referring to the video or animation content and noting in the body
text where it should be placed. All submitted files should be properly labeled so that they directly relate to the video file's content.
In order to ensure that your video or animation material is directly usable, please provide the files in one of our recommended file
formats with a preferred maximum size of 50 MB. Video and animation files supplied will be published online in the electronic version
of your article in Elsevier Web products, including ScienceDirect:
http://www.sciencedirect.com. Please supply 'stills'
with your files: you can choose any frame from the video or animation or make a separate image. These will be used instead of standard
icons and will personalize the link to your video data. For more detailed instructions please visit our video instruction pages at
http://www.elsevier.com/artworkinstructions.
Note: since video and animation cannot be embedded in the print version of the journal, please provide text for both the electronic and
the print version for the portions of the article that refer to this content.
Supplementary
data
Elsevier accepts electronic supplementary material to support and enhance your scientific research. Supplementary files
offer the author additional possibilities to publish supporting applications, high-resolution images, background datasets, sound clips
and more. Supplementary files supplied will be published online alongside the electronic version of your article in Elsevier Web products,
including ScienceDirect:
http://www.sciencedirect.com. In order to ensure that your submitted material is directly usable,
please provide the data in one of our recommended file formats. Authors should submit the material in electronic format together with
the article and supply a concise and descriptive caption for each file. For more detailed instructions please visit our artwork instruction
pages at
http://www.elsevier.com/artworkinstructions.
Submission checklist
The following list will be useful during the final checking of an article prior to sending it to the journal for review. Please
consult this Guide for Authors for further details of any item.
Ensure that the following items are present:
One author
has been designated as the corresponding author with contact details:
• E-mail address
• Full postal address
•
Telephone and fax numbers
All necessary files have been uploaded, and contain:
• Keywords
• All figure captions
• All tables (including title, description, footnotes)
Further considerations
• Manuscript has been 'spell-checked'
and 'grammar-checked'
• References are in the correct format for this journal
• All references mentioned in the Reference
list are cited in the text, and vice versa
• Permission has been obtained for use of copyrighted material from other sources
(including the Web)
• Color figures are clearly marked as being intended for color reproduction on the Web (free of charge)
and in print, or to be reproduced in color on the Web (free of charge) and in black-and-white in print
• If only color on the
Web is required, black-and-white versions of the figures are also supplied for printing purposes
For any further information please
visit our customer support site at
http://support.elsevier.com.
Use of
the Digital Object Identifier
The Digital Object Identifier (DOI) may be used to cite and link to electronic documents. The
DOI consists of a unique alpha-numeric character string which is assigned to a document by the publisher upon the initial electronic
publication. The assigned DOI never changes. Therefore, it is an ideal medium for citing a document, particularly 'Articles in press'
because they have not yet received their full bibliographic information. The correct format for citing a DOI is shown as follows (example
taken from a document in the journal
Physics Letters B):
doi:10.1016/j.physletb.2010.09.059
When you use the DOI to
create URL hyperlinks to documents on the web, the DOIs are guaranteed never to change.
Proofs
One set of page proofs (as PDF files) will be sent by e-mail to the corresponding author (if we do not have an
e-mail address then paper proofs will be sent by post) or, a link will be provided in the e-mail so that authors can download the files
themselves. Elsevier now provides authors with PDF proofs which can be annotated; for this you will need to download Adobe Reader version
7 (or higher) available free from
http://get.adobe.com/reader. Instructions on how to annotate PDF files will accompany
the proofs (also given online). The exact system requirements are given at the Adobe site:
http://www.adobe.com/products/reader/tech-specs.html.
If you do not wish to use the PDF annotations function, you may list the corrections (including replies to the Query Form) and return
them to Elsevier in an e-mail. Please list your corrections quoting line number. If, for any reason, this is not possible, then mark
the corrections and any other comments (including replies to the Query Form) on a printout of your proof and return by fax, or scan the
pages and e-mail, or by post. Please use this proof only for checking the typesetting, editing, completeness and correctness of the text,
tables and figures. Significant changes to the article as accepted for publication will only be considered at this stage with permission
from the Editor. We will do everything possible to get your article published quickly and accurately – please let us have all your
corrections within 48 hours. It is important to ensure that all corrections are sent back to us in one communication: please check carefully
before replying, as inclusion of any subsequent corrections cannot be guaranteed. Proofreading is solely your responsibility. Note that
Elsevier may proceed with the publication of your article if no response is received.
Offprints
The corresponding author, at no cost, will be provided with a PDF file of the article via e-mail. For an extra
charge, paper offprints can be ordered via the offprint order form which is sent once the article is accepted for publication. The PDF
file is a watermarked version of the published article and includes a cover sheet with the journal cover image and a disclaimer outlining
the terms and conditions of use.
Additional information
Author Benefits
No
page charges. Publishing in Vacuum is free
For
inquiries relating to the submission of articles (including electronic submission) please visit this journal's homepage. Contact details
for questions arising after acceptance of an article, especially those relating to proofs, will be provided by the publisher. You can
track accepted articles at
http://www.elsevier.com/trackarticle. You can also check our Author FAQs (
http://www.elsevier.com/authorFAQ)
and/or contact Customer Support via
http://support.elsevier.com.
