1. Psychopathia sexualis;von Krafft‐Ebing,1886
2. Three essays on the theory of sexuality;Freud,1905
3. Love maps;Money,1986
4. Human sexuality and its problems;Bancroft,1989
5. Beyond hormones: A novel hypothesis for the biological basis of male sexual orientation;Bockland;J Endocrinol Invest,2003