Patterns of physical and relational aggression in a school-based sample of boys and girls
Journal of Abnormal Child Psychology (2010) - Comment
pubmed: 20013045  doi: 10.1007/s10802-009-9376-3  issn: 1573-2835  issn: 0091-0627 

Ann Marie Crapanzano, Paul J. Frick, Andrew M. Terranova