Strohmeier, Dagmar, et al. “The Need for Peer Acceptance and Affiliation As Underlying Motive for Aggressive Behaviour and Bullying Others Among Immigrant Youth Living in Austria and Norway”. Anales De Psicología Annals of Psychology, vol. 28, no. 3, Oct. 2012, pp. 695-04, doi:10.6018/analesps.28.3.155991.