RT Article T1 Theory, operationalization, identification, and the interpretation of different differences in time series models JF Journal of quantitative criminology VO 17 IS 4 SP 359 OP 375 A1 O'Brien, Robert M. LA English YR 2001 UL https://krimdok.uni-tuebingen.de/Record/1639558896 K1 Kriminalität K1 Arbeitslosigkeit K1 Zeitreihenanalyse K1 Operationalisierung