RT Article T1 Lead exposure and violent crime in the early twentieth century JF Explorations in economic history VO 62 SP 51 OP 86 A1 Feigenbaum, James J. A2 Muller, Christopher LA English YR 2016 UL https://krimdok.uni-tuebingen.de/Record/1912607425 DO 10.1016/j.eeh.2016.03.002