Scopus
Scopus launched in November 2004. It is the largest abstract and citation database of peer-reviewed literature: scientific journals, books and conference proceedings with bibliometrics tools to track…
Open Library
Open Library is an initiative of the https://archive.org/">Internet Archive, a 501(c)(3) non-profit, building a digital library of Internet sites and other cultural artifacts in digital form…
Springer eJournals
Springer is one of the leading international scientific publishing companies. Springer's eJournals cover a wide range of subjects including biomedicine and the life sciences, clinical medicine,…