Citation indexes can be used to find articles that have cited a specific article. They can also be used for a general subject search.These two indexes include arts & humanities, social sciences, and sciences. If the full text is not available within the database, use the Periodical Holdings List to search for the journal.
ScienceDirect Full text collection, abstract and citation database, and controlled index of the scientific web.
Web of Science Science Citation Index Expanded 1995-present, Social Sciences Citation Index 1995-present, and Arts & Humanities Citation Index 1995-present.
Google Scholar A free tool on the internet in which you can search by the author or title of a particular article to find citation information, or you can do a general subject search. Ranks documents, weighing the full text of each document, where it was published, who it was written by, as well as how often and how recently it has been cited in other scholarly literature.