"Handicapés mentaux." . . . . "Geestelijk gehandicapte kinderen." . . "Geistige Behinderung." . . "Family." . . "Broers en zusters." . . "Frères et sœurs." . . "Frères et soeurs." . "Intellectual Disability." . . "Famille." . . "Sibling Relations." . . "Kind." . . "Mental Retardation." . . "Geschwister." . . . "Brothers and sisters of retarded children. An explanatory study"@en . . . . "Brothers and sisters of retarded children" . "Special education and rehabilitation monograph series, 9" . . . . . . . "Brothers and sisters of retarded children: an exploratory study" . . . . . "Brothers and sisters of retarded children an exploratory study"@en . . . . "Brothers and sisters of retarded children : an exploratory study" . . . "For parents, educators, psychologists, and physicians." . . . . . . . . . .