RT Article T1 Childhood aggression and peer relations in the context of family and neighborhood factors JF Child development VO 66 IS 2 SP 360 OP 375 A1 Kupersmidt, J. B. LA English YR 1995 UL https://krimdok.uni-tuebingen.de/Record/1639401644 K1 Minderjährige K1 Aggression