Côté, Sylvana, Vaillancourt, Tracy, LeBlanc, John C., Nagin, Daniel S. et Tremblay, Richard E. 2006. «The Development of Physical Aggression from Toddlerhood to Pre-Adolescence: A Nation Wide Longitudinal Study of Canadian Children ». Journal of Abnormal Child Psychology, vol. 34, no 1, p. 68-82.