References
- Cullen, F. T. 2001. “From Nothing Works to What Works: Changing Professional Ideology in the 21st Century.” Prison Journal 81 (3):313–338. doi:10.1177/0032885501081003002
- Martinson, R. 1976. “What Works? – Questions and Answers about Reform.” In Rehabilitation, Recidivism and Research, 7–39. Hackensack, NJ: Natl. Council Crime Delinquency.