«How the 'Digital Object Identifier' works». BusinessWeek (BusinessWeek). 23 July 2001. Henta 20 April 2010. «Assuming the publishers do their job of maintaining the databases, these centralized references, unlike current Web links, should never become outdated or broken.»
Langston, Marc; Tyler, James (2004). «Linking to journal articles in an online teaching environment: The persistent link, DOI, and OpenURL». The Internet and Higher Education7 (1): 51–58. doi:10.1016/j.iheduc.2003.11.004.
doi.org
«1.2 History», Introduction, International DOI Foundation, 17. oktober 2015
