Cake History Notes. 2009-05-10 [2012-09-14]. (原始内容存档于2017-12-31). Richard Sax. Classic Home Desserts: A Treasury of Heirloom. Interglobe. [2012-09-14].
International Obfuscated C Code Contest FAQ Page(页面存档备份,存于互联网档案馆) A port of the "heirloom" SVR4 Bourne shell from OpenSolaris to other Unix-like systems(页面存档备份,存于互联网档案馆)