DOIs (digital object identifiers) are unique alphanumeric codes assigned to each unique article, chapter, book, or other publication by publishers who cooperate in using the DOI standard (see link below). You will often find the DOI displayed prominently in the bibliographic information for a publication. 

Need a DOI?

If you have a citation for a book or article in hand and would like to know if a DOI has been associated with it, you can use the Metadata search (see link below) at the Crossref.org site.

Simply type in as much of the citation as you know. 

Already have a DOI?

If you have a DOI in hand and wish to know if the Libraries have access to the article, use our Article Finder (see link below) lookup tool. 

Need to know more about DOIs?

Check our DOI page.