Hong, Lawrence K. (2010). "Survival of the fastest: On the origin of premature ejaculation". The Journal of Sex Research20 (2): 109–122. ISSN0022-4499. doi:10.1080/00224498409551212.
Jern Patrick; et al. (2007). "Premature and delayed ejaculation: Genetic and environmental effects in a population‐based sample of Finnish twins". The journal of sexual medicine4 (6): 1739–1749. doi:10.1111/j.1743-6109.2007.00599.x.
worldcat.org
Hong, Lawrence K. (2010). "Survival of the fastest: On the origin of premature ejaculation". The Journal of Sex Research20 (2): 109–122. ISSN0022-4499. doi:10.1080/00224498409551212.