1. Sociocognitive conflict and intellectual growth;Bell,1985
2. L'échec et le contrat;Brousseau;Recherches,1980
3. Légitimité et actes de language;De Fornel;Actes de la Recherche en Sciences Sociales,1983
4. Interaction and instruction in the conservation experiment;Elbers;European Journal of the Psychology of Education,1986
5. Social context, social interaction and children's interpretation of class inclusion and related problems;Finn,1979