1. Abel, G. G., Blanchard, E. B., Becker, J. V., & Djenderedjian, A. (1978) Differentiating sexual aggressives with penile measures.criminal Justice and Behavior, 5, 315–332.
2. Abel, G. G., Blanchard, E. B., & Barlow, D. H. (1981). Measurement of sexual arousal in several paraphilias: The effects of stimulus modality, instructional set and stimulus content on the objective.Behaviour Research and Therapy, 19 35–33.
3. Barbaree, H. E., and Murphy, W. D. (1987)Assessment of sexual offenders by measures of erectile response: Psychometric properties and decision making. Unpublished manuscript, p. 28.
4. Card, R. D. (1993). The Card/Farrall stimulus materials revision 4.Assessment Newsletter from Farrall Institute, July.
5. Card, R. D., & Farrall, W. R. (1988). Advancements in physiological evolution of assessment and treatment of the sexual aggressor.Human Sexual Aggression: Current Perspectives, Annals of the New York Academy of Sciences, 528, 261–273.