The most comprehensive indexing service for mathematicians.
- Web of Science (ISI)
Citation and subject searching of research journals.
Literature across all fields of science and social science.
- Springer Link
Links to journals, articles and books in the sciences.
- Wiley Online Library
Journals in the physical/life sciences and in the social sciences.
- Academic Search Complete
Full text scholarly journals - social and general sciences, humanities.
- Papers First
(Indexing: 1993+) Index of papers presented at conferences worldwide.
(Indexing: 1993+) Index of worldwide conference proceedings.
Scirus searches over 415 million science-specific Web pages.