RT Article T1 The establishment of a police gang unit: an examination of organizational and environmental factors JF Criminology VO 39 IS 1 SP 37 OP 73 A1 Katz, Charles M. 1969- LA English YR 2001 UL https://krimdok.uni-tuebingen.de/Record/1639622349 K1 Jugendgangs K1 Polizeiintervention K1 Institutionentheorie DO 10.1111/j.1745-9125.2001.tb00916.x