Scorolli, C; Ghirlanda, S; Enquist, M; Zattoni, S; Jannini, E A (2007). "Relative prevalence of different fetishes". International Journal of Impotence Research. 19 (4): 432–7. doi:10.1038/sj.ijir.3901547. PMID17304204.
Scorolli, C; Ghirlanda, S; Enquist, M; Zattoni, S; Jannini, E A (2007). "Relative prevalence of different fetishes". International Journal of Impotence Research. 19 (4): 432–7. doi:10.1038/sj.ijir.3901547. PMID17304204.