RT Article T1 The effect of concealed handgun laws on crime: Beyond the dummy variables JF International review of law and economics VO 23 IS 2 SP 199 OP 216 A1 Rubin, Paul H. A2 Dezhbakhsh, Hashem LA English YR 2003 UL https://krimdok.uni-tuebingen.de/Record/1912528193 DO 10.1016/S0144-8188(03)00027-9