D. Byrne and J. Lamberth, "The effect of erotic stimuli on sex arousal, evaluative responses, and subsequent behavior," in US Commission on Obscenity and Pornography, Technical Reports, Vol. VIII. (1971).

cited in:

W. Cody Wilson, "Can Pornography Contribute to the Prevention of Sexual Problems?" in C. Brandon Qualls, John Wincze, and David Barlow (editors), The Prevention of Sexual Disorders: Issues and Approaches (1978), Plenum Press, p. 171.