RT Article T1 Assessing the gang-level and community-level effects of the Philadelphia Focused Deterrence strategy JF Journal of experimental criminology VO 15 SP 499 OP 527 A1 Roman, Caterina G. A2 Forney, Megan A2 Bhati, Avinash A2 Hyatt, Jordan M. A2 Link, Nathan W. LA English YR 2019 UL https://krimdok.uni-tuebingen.de/Record/1912461870 DO 10.1007/s11292-018-9333-7