Scopus is an abstract and citation database from Elsevier which offers a comprehensive overview of international research output in the fields of science, technology, medicine, social sciences, and arts and humanities.

Updated daily, Scopus includes abstracts and cited references of over 20,000 peer-reviewed titles from more than 5,000 international publishers. Scopus includes references of all articles published since 1996, as well as many older cited references with the oldest dating back to 1788.