Vectors, change of basis and matrix representation: onto-semiotic approach in the analysis of creating meaning. (English)
Int. J. Math. Educ. Sci. Technol. 43, No. 1, 11-32 (2012).
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A cognitive analysis of problems of comprehension in a learning of mathematics. (English)
Educ. Stud. Math. 61, No. 1-2, 103-131 (2006).
2