link
DOI names appear in both print and online materials. DOI names are often included in tables of contents; header information for a digital item, such as an article; and citations, such as a footnote.
CrossRef DOIs should always be displayed as a permanent URL, for example:
http://dx.doi.org/10.1109/ISSTA.2002.1048560
CrossRef DOI display guidelines have been updated. The new guidelines recommend that CrossRef DOIs always be displayed as a permanent URL. Details and examples will be provided when available.
See also: CrossRef DOI Display Guidelines
