1) Copyright law 2) Creative Commons concept
Found on
https://www.crosswordclues.com/clue/copyleft
Copyleft (a play on the word copyright) is the practice of using copyright law to offer the right to distribute copies and modified versions of a work and requiring that the same rights be preserved in modified versions of the work. In other words, copyleft is a general method for making a creative work as freely available to be modified, and requ...
Found on
http://en.wikipedia.org/wiki/Copyleft
(from the article `open source`) ...a document attached to computer code that would legally require anyone distributing that code to make available any of their modifications and ...
Found on
http://www.britannica.com/eb/a-z/c/140
A type of copyright which uses the protections of copyright to ensure the freedom of users of a program
Found on
http://www.translationdirectory.com/glossaries/glossary094.htm
No exact match found.
