Miller, S. Andrea; Byers, E. Sandra (August 2004). «Actual and desired duration of foreplay and intercourse: Discordance and misperceptions within heterosexual couples». The Journal of Sex Research41 (3): 301-309. ISSN0022-4499. PMID15497058. S2CID28304924. doi:10.1080/00224490409552237.
Leonhardt, Nathan D.; Willoughby, Brian J. (February 2019). «Pornography, provocative sexual media, and their differing associations with multiple aspects of sexual satisfaction». Journal of Social and Personal Relationships36 (2): 618-641. ISSN0265-4075. S2CID149214569. doi:10.1177/0265407517739162.
Miller, S. Andrea; Byers, E. Sandra (August 2004). «Actual and desired duration of foreplay and intercourse: Discordance and misperceptions within heterosexual couples». The Journal of Sex Research41 (3): 301-309. ISSN0022-4499. PMID15497058. S2CID28304924. doi:10.1080/00224490409552237.
Leonhardt, Nathan D.; Willoughby, Brian J. (February 2019). «Pornography, provocative sexual media, and their differing associations with multiple aspects of sexual satisfaction». Journal of Social and Personal Relationships36 (2): 618-641. ISSN0265-4075. S2CID149214569. doi:10.1177/0265407517739162.
Miller, S. Andrea; Byers, E. Sandra (August 2004). «Actual and desired duration of foreplay and intercourse: Discordance and misperceptions within heterosexual couples». The Journal of Sex Research41 (3): 301-309. ISSN0022-4499. PMID15497058. S2CID28304924. doi:10.1080/00224490409552237.
Miller, S. Andrea; Byers, E. Sandra (August 2004). «Actual and desired duration of foreplay and intercourse: Discordance and misperceptions within heterosexual couples». The Journal of Sex Research41 (3): 301-309. ISSN0022-4499. PMID15497058. S2CID28304924. doi:10.1080/00224490409552237.
Leonhardt, Nathan D.; Willoughby, Brian J. (February 2019). «Pornography, provocative sexual media, and their differing associations with multiple aspects of sexual satisfaction». Journal of Social and Personal Relationships36 (2): 618-641. ISSN0265-4075. S2CID149214569. doi:10.1177/0265407517739162.