RT Article T1 Aggression in a youth club: an observation study in a town in the west of Holland JF Juvenile delinquency in the Netherlands SP 105 OP 134 A1 Steinmetz, Carl H. LA English YR 1988 UL https://krimdok.uni-tuebingen.de/Record/1486362265 SN 9062990363 K1 Aggression K1 Jugendclub