You can hyperlink DOI numbers to dx.doi.org. However, some publishers have elected to use nasty characters in their DOI numbering scheme (‘<’, ‘>’, ‘_’ and ‘;’ have all been spotted). This will either upset (La)TeX, or your PDF reader. This package contains a single user-level command \doi{}, which takes a DOI number, and creates a correct hyperlink from it.

The authors are Maarten Sneep and Heiko Oberdiek.