1. Psychiatry and Darwinism. Time to reconsider;Abed;British Journal of Psychiatry,2000
2. The Extended Phenotype;Dawkins,1982
3. The Red Queen;Ridley,1994
4. The homoerotic behavior that never evolved;Muscarella;Journal of Homosexuality,1999
5. Oxford Textbook of Psychiatry;Gelder,1996