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* [http://www.gnu.org/philosophy 自由软件基金会宗旨]
* [https://web.archive.org/web/20100115014249/http://www.fsf.org/ 自由软件基金会]
* [http://www.oreilly.com/openbook/freedom/ Free as in Freedom自由如自由--Biography of Richard Stallman（ 斯托曼传记 ）]* [https://web.archive.org/web/20090712102753/http://littleblackrabit.mysinablog.com/index.php?op=ViewArticle&articleId=835739 Free as in Freedom--Biography of Richard Stallman斯托曼传记中文書評]