Open Definition 2.1 on opendefinition.org "This essential meaning matches that of “open” with respect to software as in the Open Source Definition and is synonymous with “free” or “libre” as in the Free Software Definition and Definition of Free Cultural Works."
opensource.org
Eric S. Raymond. «Open Source Certification». Open Source Initiative. Archivado desde el original el 6 de septiembre de 2015. Consultado el 16 de junio de 1999.
Kelty, Christpher M. (2008). «The Cultural Significance of free Software - Two Bits». Duke University press - durham and london. p. 99. «Prior to 1998, Free Software referred either to the Free Software Foundation (and the watchful, micromanaging eye of Stallman) or to one of thousands of different commercial, avocational, or university-research projects, Processes, licenses, and ideologies that had a variety of names: sourceware, freeware, shareware, open software, public domain software, and so on. The term Open Source, by contrast, sought to encompass them all in one movement.».
web.archive.org
Eric S. Raymond. «Open Source Certification». Open Source Initiative. Archivado desde el original el 6 de septiembre de 2015. Consultado el 16 de junio de 1999.
