Adeleke, O., Aluede, A., Fajoju, A., Omoike, D., & Afen-Apaida, J. (2008). A review of the extent, nature, characteristics and effects of bullying behaviour in schools. Journal of Instructional Psychology, 35(2), 151-158.
Atria, M., Strohmeier, D., & Spiel, C. (2007). The relevance of the school class as social unit for the prevalence of bullying and victimization. European Journal of Developmental Psychology, 4(4), 372-387.
Beld, M., Helm, G.H.P. van der, Swart, J. de, & Stams, G.J.J.M. (2013, submitted). Back to school, measuring classroom climate in (semi) secure and correctional prison schools.
Bion, W.R. (1980). Experiences in Groups. London: Tavistock.
Craig, W.M., Pepler, D., & Atlas, R. (2000). Observations of bullying in the playground and in the classroom. School Psychology International, 21(1), 22-36.
Currie, C., Zanotti, C., Morgan, A., Currie, D., De Looze, M., Roberts, C., Samdal, O., Smith, O.R.F., & Barnekow, V. (2012). Social determinants of health and well-being among young people. Health Behaviour in School-aged Children (HBSC) study: international report from the 2009/2010 survey. Kopenhagen: WHO Regional Office for Europe.
Copeland, W. (2013). Adult Psychiatric Outcomes of Bullying and Being Bullied by Peers in Childhood and Adolescence. JAMA Psychiatry, 70(4), 419-426.
Ferguson, C.J., Miguel, C.S., Kilburn Jr., C., & Sanchez, P. (2007). The effectiveness of school-based anti-bullying programs: a meta-analytic review. Criminal Justice Review, 32(4), 401-414.
Helm, G.H.P. van der, & Austmann, B. (2012). Meester en hulpverlener. De rol van de docent in de gesloten jeugdzorg. Sozio, 3, 106-112.
Helm, G.H.P. van der, Beld, M., & Stams, G.J.J.M. (2014). De hardnekkige mythe dat straffen helpt bij opvoeding in de gesloten jeugdzorg (The enduring myth that punishments aids upbringing in residential youth care). Tijdschrift voor Orthopedagogiek: Onderzoek en Praktijk, 4, 164-175.
Huitsing, G., Snijders, T., Duijn, M. van, & Veenstra, R. (2014). Victims, bullies, and their defenders: A longitudinal study of the co-evolution of positive and negative networks. Development and Psychopathology, 26, 645-659.
Jeong, S., & Lee, B.H. (2013). A Multilevel Examination of Peer Victimization and Bullying Preventions in Schools. Journal of Criminology, 1-10. doi.org/10.1155/2013/735397.
Merrell, K.W., Gueldner, B.A., Ross, S.W., & Isava, D.M. (2008). How effective are school bullying intervention programs? A meta-analysis of intervention research. School Psychology Quarterly, 23(1), 26-42. http://dx.doi.org/10.1037/1045-3830.23.1.26.
Pinker, S. (2011). The better angels of our nature: The decline of violence in history and its causes. New York: Penguin.









