What is a DOI
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What is a DOI?
A DOI, or digital object identifier, is a unique string of numbers and letters assigned by a registration agency. The DOI is used to identify and provide a permanent link to its location on the internet. The DOI is assigned by the DOI when an article is published and made electronically.
Many databases and publishers provide the DOI on the first page of the article.The DOI may also be part of the article’s URL. For instance, the DOI in “http://dx.doi.org/10.1016” would be “10.1016.”