RT Article T1 The sex composition of groups and youths' delinquency: A comparison of gang and nongang peer groups A1 Peterson, Dana A2 Carson, Dena C. LA English PB Springer New York YR 2012 UL https://krimdok.uni-tuebingen.de/Record/1912700492 DO 10.1007/978-1-4614-1659-3_11