1. Bernstein, B., Brandeis, B. & Henderson, D. (1969). Speech of lower-class children (Letter to the Editor). Developmental Medicine and Child Neurology, 11, 113–116.
2. Bruner, J.S. (1966). On cognitive growth I and II. In: Bruner, Olver & Greenfield (eds), Studies in cognitive growth. New York: John Wiley, 1–67.
3. Bruner, J.S. (1972). Nature and uses of immaturity. American Psychologist, 27, 8.
4. Cohors-Fresenborg, E. (1978). Learning problem solving by developing automata networks. Revue de Phonétique Appliquée, 46/47, 93–99.
5. Cordier, J. (1975). Une anthropologie de Vinadaptation-Ladynamique de l’xclusion sociale. Bruxelles: Editions de l’Université de Bruxelles.