RT Article T1 Crack, street gangs, and violence JF Criminology VO 29 IS 4 SP 623 OP 650 A1 Klein, Malcolm W. 1930- A2 Maxson, Cheryl L. A2 Cunningham, Lea C. LA English YR 1991 UL https://krimdok.uni-tuebingen.de/Record/1640074260 K1 Crack K1 Drogenhandel K1 Gewalt K1 Drogen K1 Jugendbanden K1 Kriminalität DO 10.1111/j.1745-9125.1991.tb01082.x