1. Das Kindesalter. Fakten, Probleme, Theorie (Juventa, München 1974) (orig.: Theory and problems of child development;Ausubel,1970
2. A learning analysis of the development of peer-oriented behavior in nine-month-old infants;Becker;Developmental Psychology,1977
3. The origins of reciprocity: the early mother-infant interaction;Brazelton,1974
4. The ontogenesis of speech acts;Bruner;Journal of Child Language,1975
5. Wie das Kind lernt, sich sprachlich zu verstandigen;Bruner;Zeitschrift für Padagogik,1977