Updated daily, Scopus® is an abstract and citation database of research literature and quality web sources. It includes the abstracts and cited references of 15,000 peer reviewed journals from more than 4,000 international publishers. In addition it offers its users more than 386 million relevant web pages and 21 million patents on top of a large number of additional titles from conference proceedings to trade journals.
A wealth of archive material is provided with author abstracts going back to 1869, and author references since 1996, which enables citation navigation and searching in over ten years of records. Subject areas covered by this resource include: chemistry, physics, mathematics and engineering; biological, agricultural and environmental sciences; and general sciences.
Further details cane be found here.