RT Article T1 Incarceration and learned helplessness JF International journal of offender therapy and comparative criminology VO 42 IS 3 SP 224 OP 232 A1 Schill, Richard A. A2 Marcus, David K. LA English YR 1998 UL https://krimdok.uni-tuebingen.de/Record/1639800417 K1 Strafvollzug K1 Erlernte Hilflosigkeit K1 Wirkungsforschung