Scopus is the largest abstract and citation database of peer-reviewed literature and quality web sources from all subjects. Scopus processes about 24,500 peer-reviewed journals from more than 5,000 publishers,
The database contains nearly 200,000 book titles and 27 million patent records from five patent offices. Scopus also offers information on articles that are only printed in the press. Scopus creates and automatically updates the profiles of scientists and authors of scientific publications, thus improving the quality of the citation analysis performed.
The database is updated daily, the retrospective dates back to 1970.
The Research and Development Council of the Czech Ministry of Education appraised Scopus as one of the two world leading databases for evaluation of research and development in 2008. You can connect to SciVal directly from Scopus.
For more information about Scopus see https://www.elsevier.com/solutions/scopus.