RT Article T1 Self-control, locus of control and social status in children JF Psychological reports VO 60 IS 2 SP 355 OP 358 A1 Krantz, M. A2 Ferrer, M. LA English YR 1987 UL https://krimdok.uni-tuebingen.de/Record/1639383409 K1 Kind-Eltern-Verhältnis K1 Gleichaltrigengruppe K1 Selbstkontrolle K1 Kinder