Q. What is a DOI Number? How do I search by DOI Number? How do I find an article's DOI number?

What is a DOI?

DOI stands for Digital Object Identifier. It is a way to identify electronic documents, usually articles. Web addresses change but the DOI is permanent. Many articles do not have DOI numbers and older articles rarely do. In certain fields, like Medicine, DOI numbers are standard.

How do I search by DOI?

To find the full text of an article, try searching with the DOI number in Google Scholar or use the UMBrella discovery tool.

How do I find an article's DOI?

Many articles might not have a DOI, especially those published before 2000. If an article has a DOI, it is usually located on the first page. The use of the DOI is common in the sciences and social sciences.

Crossref.org has a form which allows you to enter the article citation information and find the DOI.