RT Article T1 Stability in aggression and aggression control in a sample of primary school children in China JF Acta psychiatrica Scandinavica VO 80 IS 2 SP 160 OP 164 A1 Ekblad, S. LA English YR 1989 UL https://krimdok.uni-tuebingen.de/Record/1633992403 K1 Frühauffälligkeit K1 Aggressivität