John Court, "Sex and Violence: A ripple effect," in N. Malamuth and E. Donnerstein (Editors), Pornography and Sexual Aggression (1984), Academic Press.

cited in:

Edward Donnerstein, Daniel Linz, Steven Penrod, The Question of Pornography: Research Findings and Policy Implications (1987), The Free Press - A Division of MacMillan, Inc., p. 62-65.