[Duration and intensity of relations. A model study on the problem of differentiation in retarded children].
D002648:Child; D003937:Diagnosis, Differential; D006801:Humans; D008607:Intellectual Disability / Q000175:diagnosis*; D008960:Models, Psychological
Dauer and Starke von Beziehungen. Eine Modellstudie zum Differenzieerungsproblem entwicklungsgestorter Kinder.