Ray Kampf, The Bear Handbook : A Comprehensive Guide for Those who are Husky, Hairy, and Homosexual, and Those who Love'em, Haworth Press, , 134 p. (ISBN978-1-56023-996-3, lire en ligne)
(en) John Dececco Phd et Les Wright, The Bear Book II : Further Readings in the History and Evolution of a Gay Male Subculture, Routledge, , 478 p. (ISBN978-1-136-38327-4, lire en ligne)
Ron Jackson Suresha, (2002). Bears on Bears: Interviews and Discussions. "Bear Ages and Stages". Los Angeles: Alyson Publications. Retrieved on 2008-09-29 (ISBN1-55583-578-3) [1]
Chroniques socio-anthropologiques au temps du SIDA trois essais Rommel Mendès-Leite, Bruno-Marcel Proth, Pierre-Olivier de Busscher pages 98-99 L’Harmattan 2000 [2]
Ray Kampf, (2000). The Bear Handbook: A Comprehensive Guide for Those Who Are Husky, Hairy and Homosexual, and Those Who Love 'Em from Haworth Press page 16 (ISBN1-56023-996-4) [4]
