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- ↑ Sexual Behavior in the Human Male, p. 656
- ↑ Turner CF, Ku L, Rogers SM, Lindberg LD, Pleck JH, Sonenstein FL (1998). "Adolescent sexual behavior, drug use, and violence: increased reporting with computer survey technology". Science. 280 (5365): 867–73. doi:10.1126/science.280.5365.867. PMID 9572724.
- ↑ Coffman, Katherine B.; Coffman, Lucas C.; Ericson, Keith M. Marzilli (2013). "The Size of the LGBT Population and the Magnitude of Anti-Gay Sentiment are Substantially Underestimated". Management Science. 63 (10): 3168–3186. doi:10.1287/mnsc.2016.2503.