MathSciNet Bibliography of journal articles, published by the American Mathematical Society, covering all branches of mathematics, some with reviews. Coverage: from around 1800 to the present day (access only within the university network or via VPN). Quickstart Guide
Zentralblatt Math Bibliography of journal articles, published by the European Mathematical Society, covering all branches of mathematics. Coverage: 1826 to the present day (access only within the university network or via VPN)
Web of Science Interdisciplinary journal article bibliography, analyzing more than 10,000 of the most important academic journals. Coverage: 1900 to the present day (access only within the university network or via VPN)