1. AtkinsonP., DelamontS., and HammersleyM.: 1988, ?Qualitative research traditions: A British response to Jacob?, Review of Educational Research 58, 231?250.
2. BarnesD., and ToddF.: 1977, ?Communicating and Learning in Small Groups?, Routledge & Kegan Paul, London.
3. BauersfeldH.: 1992, ?A professional self-portrait?, Journal for Research in Mathematics Education 23, 483?494.
4. CobbP.: 1995, ?Mathematical learning and small group interaction: Four case studies?, in P.Cobb & H.Bauersfeld (eds.), ?The Emergence of Mathematical Meaning: Interaction in Classroom Cultures?, Lawrence Erlbaum Associates, Hillsdale, NJ, pp. 25?130.
5. CobbP., WoodT., and YackelE.: 1992, ?Learning and interaction in classroom situations?, Educational Studies in Mathematics 23, 99?122.