 |  |  | ACM Computing Reviews |
 |  |  | Cambridge Scientific Abstracts |
 |  |  | Current Contents/Physics, Chemical, & Earth Sciences |
 |  |  | Engineering Index |
 |  |  | INSPEC Information Services |
 |  |  | International Abstracts in Operations Research |
|  |
 |  |  | Mathematical Reviews |
 |  |  | PASCAL/CNRS |
 |  |  | Science Citation Index |
 |  |  | Scopus |
 |  |  | Statistical Theory and Method Abstracts |
 |  |  | Zentralblatt MATH |
|