RT Article T1 Impediments to cross-national research: problems of reliability and validity JF International journal of comparative and applied criminal justice VO 16 IS 1 SP 57 OP 65 A1 Gertz, Marc A2 Myers, Laura B. LA English YR 1992 UL https://krimdok.uni-tuebingen.de/Record/1640266267 K1 Vergleichende Kriminologie K1 International K1 Vergleichsforschung