Look for the DOI (digital object identifier) on the PDF of the article or search for it on the CrossRef.org website using the Metadata Search. Be aware that not all articles have a DOI.
Option 1: Check the article PDF
Locate the PDF of the article. Many publishers include the DOI along with other citation information on the first page of an article. Look in the margins, header, and footer.
Option 2: Check CrossRef.org
CrossRef.org is the organization that facilitates the creation and use of DOIs by publishers and scholars. Its database contains citation information for all articles that have been assigned DOIs.
Go to the CrossRef.org website and follow the instructions to search for the article.
If CrossRef.org has no DOI listed, you can assume there is none for the article you searched.
