1. Abel, G., Becker, J., Cunningham-Rathner, J., Mittleman, M. & Rouleau, J. L. (1988). Multiple paraphiliac diagnoses among sex offenders. Bulletin of the American Academy of Psychiatry and the Law, 16, 153-168.
2. A Psychometric Typology of Child Abusers
3. Toward a Taxonomy of Psychopathology: The Purpose of Psychiatric Classification
4. Campbell, T. W. (1999). Challenging the evidentiary reliability of DSM-IV. American Journal of Forensic Psychology, 17, 47-68.
5. Sociometric study of the sex offender.