Visualization, Explanation and Reasoning Styles in Mathematics - Jørgensen, Klaus Frovin; Mancosu, Paolo; Pedersen, Stig Andur; Jørgensen, Klaus Frovin; Jørgensen, Klaus Frovin; Mancosu, Paolo; Pedersen, Stig Andur; Pedersen, S. A. (Springer Netherlands, 2005)