1. Aebi, M. F., Tiago, M. M., & Burkhardt, C. (2015). Council of Europe Annual Penal Statistics SPACE I-Prison Populations Survey 2014. Council of Europe & University of Lausanne. Retrieved February 15, 2016, from http://wp.unil.ch/space/files/2016/05/SPACE-I-2014-Report_final.1.pdf
2. Andeweg, R. B., & Irwin, G. A. (2005). Governance and Politics in the Netherlands (2nd ed.). Basingstoke: Palgrave Macmillan.
3. Blad, J. (2003). Against Penal Instrumentalism. Retrieved July 17, 2016, from http://www.iirp.edu/pdf/nl03_blad.pdf
4. Blakenburg, E., & Bruinsma, F. (1994). Dutch Legal Culture (2nd ed.). Deventer: Kluwer Law and Taxation Publishers.
5. Boin, A. (2001). Securing Safety in the Dutch Prison System: Pros and Cons of a Supermax. Howard Journal of Criminal Justice, 40(4), 335–346.