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Understanding the Digital Object Identifier (DOI): DOI


Finding the DOI

Expaining DOI's

Here are a couple of resources explaining what DOI is, when and why created.

DOI Flowchart from APA Assn

Flowchart showing steps to using a DOI and where to locate it.

DOI in APA 7

DOI Check / Verify

Resolve your DOIs with this searchbox

If you encounter a DOI string (e.g., 10.1037/0003-066X.59.1.29) that is not hyperlinked, you can enter it in the box below:
TIP: You can turn a DOI string into a URL by appending the DOI string to

A DOI URL looks like this  ----- 

A general DOI number is -- 10.1007/s10754-013-9127-4


Two links that help with verifying DOIs: