As of this week, Scopus has added 5 million pre-1996 records including over 93 million references to the database. This has been done in two ways: by adding pre-1996 cited references to existing articles in Scopus and by adding article back files, including their cited references, coming from archives from various publishers, going back to 1970.
This milestone is the result of the ongoing Scopus Cited Reference Expansion Program initiated in March 2014 that aims to include cited references in