RT Article T1 Gangs and violence: Disentangling the impact of gang membership on the level and nature of offending JF Journal of quantitative criminology VO 29 IS 2 SP 143 OP 166 A1 Melde, Chris A2 Esbensen, Finn-Aage 1951- LA English YR 2013 UL https://krimdok.uni-tuebingen.de/Record/1912564017 DO 10.1007/s10940-012-9164-z