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The relationship between the mathematical structure of Euclidean transformations and the spontaneously developed cognitive structure of young children. Zusammenhang zwischen der mathematischen Struktur der Kongruenzabbildungen und den spontan entwickelten kognitiven Strukturen kleiner Kinder. (English)
J. Res. Math. Educ. (Mar 1978) v. 9(2) p. 83-92. CODEN: JRMEDN [ISSN 0021-8251]
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