"Dan Olweus: Award for Distinguished Contributions to the International Advancement of Psychology". American Psychologist. 66 (8): 814–816. 2011. doi:10.1037/a0025698. ISSN1935-990X. PMID22082419.
"Dan Olweus: Award for Distinguished Contributions to Research in Public Policy". American Psychologist. 67 (8): 673–674. 2012. doi:10.1037/a0030036. ISSN1935-990X. PMID23163454.
Ttofi, Maria M.; Farrington, David P. (2011). "Effectiveness of school-based programs to reduce bullying: a systematic and meta-analytic review". Journal of Experimental Criminology. 7 (1): 27–56. doi:10.1007/s11292-010-9109-1. ISSN1573-3750.
"Dan Olweus: Award for Distinguished Contributions to the International Advancement of Psychology". American Psychologist. 66 (8): 814–816. 2011. doi:10.1037/a0025698. ISSN1935-990X. PMID22082419.
"Dan Olweus: Award for Distinguished Contributions to Research in Public Policy". American Psychologist. 67 (8): 673–674. 2012. doi:10.1037/a0030036. ISSN1935-990X. PMID23163454.
"Dan Olweus: Award for Distinguished Contributions to the International Advancement of Psychology". American Psychologist. 66 (8): 814–816. 2011. doi:10.1037/a0025698. ISSN1935-990X. PMID22082419.
"Dan Olweus: Award for Distinguished Contributions to Research in Public Policy". American Psychologist. 67 (8): 673–674. 2012. doi:10.1037/a0030036. ISSN1935-990X. PMID23163454.
Olweus, Dan (1993). Bullying at school : what we know and what we can do. Malden, MA: Wiley. ISBN0-631-19241-7. OCLC28257152.
Ttofi, Maria M.; Farrington, David P. (2011). "Effectiveness of school-based programs to reduce bullying: a systematic and meta-analytic review". Journal of Experimental Criminology. 7 (1): 27–56. doi:10.1007/s11292-010-9109-1. ISSN1573-3750.