RT Article T1 Problem behavior in the middle school years: an assessment of the social development model JF Journal of research in crime and delinquency VO 48 IS 4 SP 566 OP 593 A1 Sullivan, Christopher J. A1 Hirschfield, Paul LA English YR 2011 UL https://krimdok.uni-tuebingen.de/Record/1627037292 K1 Antisoziales Verhalten K1 Soziale Entwicklung K1 Lebenslauftheorien K1 Entwicklungskriminologie K1 Prävention