MathSciNet is an extensive database consisting of world mathematical literature published since 1940. This database enables access to bibliographic data of mathematical literature. AMS – American Mathematical Society is updating and improving the data. AMS is one of the best known mathematical associations and one of the leading publishers of mathematical literature.

Zentralblatt Math is the most complete and the oldest database for browsing the abstracts from mathematical journals. The database consists of more than 1.8 million entries from more than 3000 journals.