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Intervention (transcription of an oral intervention). Intervention (transcription amendee d’une intervention orale). (French)
Mathematical experiments at secondary level. Proceedings. Les mathematiques dans les C.E.S. experimentaux. Journees de travail. Institut National de Recherche et de Documentation Pedagogiques (INRDP), 75 - Paris (France) 1974. p. 7-20 Conference: Mathematical experiments at secondary level, Mittelwihr, France, 13 - 16 May 1974
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