RT Article T1 Co-offending and the diversification of crime types JF International journal of offender therapy and comparative criminology VO 56 IS 5 SP 811 OP 829 A1 Andresen, Martin A. A2 Felson, Marcus 1947- LA English YR 2012 UL https://krimdok.uni-tuebingen.de/Record/1524401633 K1 Co-offending K1 Group crime K1 Diversification DO 10.1177/0306624X11407154