By Lipovetsky Stan   in International Journal of Mathematical Education in Science and Technology

ISSN:1464-5211|40|2|271-277

Taylor & Francis Ltd‎(2009)‎

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By Lipovetsky Stan   Conklin Michael   in International Journal of Mathematical Education in Science and Technology

ISSN:1464-5211|36|4|361-373

Taylor & Francis Ltd‎(2005)‎

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