RT Article T1 Social problems, violence and juvenile delinquency in the city - a socio-ecological, multi-level approach JF Research on crime and criminal justice at the Max Planck Institute SP 51 OP 55 A1 Oberwittler, Dietrich 1963- LA English YR 1998 UL https://krimdok.uni-tuebingen.de/Record/1884141978