RT Article T1 Los Angeles street gangs JF Washington Crime News Services' juvenile justice digest VO 17 IS 18 SP 2 OP 3 A1 Genelin, Michael A1 Coplen, Bruce A2 Coplen, Bruce LA English YR 1989 UL https://krimdok.uni-tuebingen.de/Record/1632145537 K1 Gangverhalten K1 Jugendgangs K1 USA