Q. I need the digital object identifier for individual articles. Where do I find the DOI?
Here are a few methods for finding a DOI:
- Go to http://www.crossref.org/SimpleTextQuery/ and follow the instructions provided there. If this method doesn't yield a DOI, don't assume that a DOI doesn't exist. Follow up with the next two options.
- If a journal publisher uses DOIs, they will usually print the DOI somewhere on the first page of the article.
- Some of the online resources used to search for articles on topics will supply DOIs in the citations. View the full citation to see if a DOI is included.
Keep in mind that some articles won't have a DOI. The DOI system is a fairly recent concept. For example, the International DOI Foundation was founded in 1998 and the publisher Elsevier appears to have started using DOIs on all of their journal articles around 2003. So unless a publisher has retrospectively assigned DOIs to articles, articles published prior to 2000 are less likely to have DOIs.