Peer victimization, aggression, and their co-occurrence in middle school: pathways to adjustment problems
Journal of Abnormal Child Psychology (2006) - Comment
pubmed: 16648999  doi: 10.1007/s10802-006-9030-2  issn: 0091-0627  issn: 1573-2835 

Sandra Graham, Amy D. Bellmore, Jennifer Mize