SNIP measures contextual citation impact by weighting citations based on the total number of citations in a subject field.
SJR is a prestige metric based on the idea that not all citations are the same. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and a qualitative measure of the journal’s impact.
Field Mycology is devoted to the identification and study of wild fungi in Britain and Europe. It is designed to aid readers' identification skills with user-friendly keys, many colour illustrations, and tips on where and how to look for interesting and less commonly recorded species. It guides readers through the techniques required for identifying fungi in the field and under the microscope, provides reviews and guides to literature, and brings readers up-to-date with local and national recording and conservation schemes. All of this, plus the latest mycological news and events from Britain and around the world is presented. Field Mycology is edited by a panel of expert British mycologists and conservationists.