Twenge, Jean M; Sherman, Ryne A; Wells, Brooke E. Sexual Inactivity During Young Adulthood is More Common Among U.S. Millennials and iGen: Age, Period, and Cohort Effects on Having No Sexual Partners After Age 18. Archives of Sexual Behavior. 2016, 46 (2): 433–440. PMID 27480753. doi:10.1007/s10508-016-0798-z.
Twenge, Jean M; Sherman, Ryne A; Wells, Brooke E. Sexual Inactivity During Young Adulthood is More Common Among U.S. Millennials and iGen: Age, Period, and Cohort Effects on Having No Sexual Partners After Age 18. Archives of Sexual Behavior. 2016, 46 (2): 433–440. PMID 27480753. doi:10.1007/s10508-016-0798-z.