Davidson JK, Darling CA, Conway-Welch, C (Summer 1989). "The role of the Grafenberg Spot and female gushing in the female orgasmic response: an empirical analysis". J Sex Marital Ther. 15 (2): 102–20. doi:10.1080/00926238908403815. PMID2769772.
Davidson JK, Darling CA, Conway-Welch, C (Summer 1989). "The role of the Grafenberg Spot and female gushing in the female orgasmic response: an empirical analysis". J Sex Marital Ther. 15 (2): 102–20. doi:10.1080/00926238908403815. PMID2769772.