Guin, Dominique. ed. The didactical challenge of symbolic calculators : turning a computational device into a mathematical instrument / Ed. by Dominique Gui, Kenneth Ruthven, Luc Trouche - New York : Springer, c2005. - 304 p. : ill. ; ISBN: 9780387231587 0387231587 (hb : acidfree paper) 0387234357 (Ebook) Subjects--Topical Terms: Mathematics--Study and teaching (Secondary)--Audio-visual aids.Calculators. Universal Decimal Class. No.: 512:681.31 / GUI