RT Article T1 The use of standardized assessment instrument (the Achenbach Child Behavior Checklist) in longitudinal epidemiological research JF Children at risk SP 46 OP 68 A1 Verhulst, Frank C. LA English YR 1989 UL https://krimdok.uni-tuebingen.de/Record/1425009336 SN 3110121344 K1 Verhaltensstörungen K1 Frühauffälligkeit