RT Article T1 Comprehensive gang and violence reduction programs: reinventing the square wheel JF Criminology & public policy VO 10 IS 4 SP 1037 OP 1044 A1 Klein, Malcolm W. 1930- LA English YR 2011 UL https://krimdok.uni-tuebingen.de/Record/1627322531 K1 Gewaltpräventionsprogramm K1 Gemeinde K1 Gangs K1 Evaluation