Thomson Reuters (for the most of Biology, Physics and Chemistry Journals) and SCI and Scopus indexed (for Computer Science and Mathematics related Journals)
Why is only Thomson Reuters and Scopus recognized and not others like many other indexing Databases like Project Euclid, ScienceDirect, Web of Science, Mathematics at ArXiv.org, EBSCO Publishing, ProQuest, Google, Index Copernicus International, JSTOR?