Visualization Enhanced by Technology In the Learning of Multivariable Calculus. Samer Habre. Proceedings of ICTMT4 Plymouth, 9-13 August 1999.

Intuition and rigour: the role of visualization in the calculus David Tall. Mathematics Education Research Centre University of Warwick U.K.

Una Interpretación de las dificultades en el Aprendizaje del Concepto de Integral José Luis Llorens Fuster y Francisco José Santonja Gómez. Divulgaciones Matemáticas v. 5, No. 1/2 (1997), 61-76

Does a cube have an equation? Pavel Satianov and Michael N. Fried. TEACHING MATHEMATICS AND ITS APPLICATIONS, Volume 26, No. 4, 2007

Computing areas using Green’sTheorem and a Software Planimeter Paul Davis and S erban Raianu. TEACHING MATHEMATICS AND ITS APPLICATIONS, Volume 26, No. 2, 2007