RT Article T1 Collective efficacy and the contingent consequences of exposure to life-threatening violence JF Developmental psychology VO 50 IS 7 SP 1878 OP 1890 A1 Browning, Christopher R. A2 Brooks-Gunn, Jeanne 1946- A2 Maimon, David 1978- A2 Gardner, Margo LA English YR 2014 UL https://krimdok.uni-tuebingen.de/Record/1912482983 DO 10.1037/a0036767