Answered By: Kathleen Cobcroft
Last Updated: 30 May 2017     Views: 35

A digital object identifier or DOI (meaning a digital identifier of an object) is a unique code assigned by a DOI registration agency in order to identify a document or other material. DOIs are most commonly assigned to online documents.

All DOI numbers begin with a 10 and contain a prefix and a suffix separated by a slash.

Examples of DOIs:

10.1037/0002-9432.76.4.482

10.1016/j.apnr.2007.09.002

Some referencing styles recommend that you include the DOI as part of your reference if you have it. APA referencing uses DOI instead of a web address when possible.

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