RT Article T1 Child maltreatment and school performance declines: An event-history analysis JF American educational research journal VO 34 IS 3 SP 563 OP 589 A1 Leiter, J. A2 Johnsen, M. C. LA English YR 1997 UL https://krimdok.uni-tuebingen.de/Record/1639876685 K1 Schulleistung K1 Kindesmisshandlung