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Learn about citations

Learn about DOIs (Digital Object Identifiers)

A DOI is a unique code assigned to a digital object (like an article from a database) used for location and identification. You'll often see the DOI for an article listed on its first page. DOIs allow you to connect directly to a specific article, avoiding problems like broken links and missing URLs. To find the DOI for an article you're citing, use the Lookup link. To find an article from a DOI, use the DOI resolver.