Revisiting University Students’ Knowledge that Involves Basic Differential Equation Questions. Matías Camacho; Josefa Perdomo-Díaz; Manuel Santos-Trigo — 2009 PNA
An exploration of students' conceptual knowledge built in a first ordinary differential equations course (Part I) Matías Camacho-Machín; Josefa Perdomo-Díaz; Manuel Santos-Trigo — 2012 The Teaching of Mathematics
An Exploration of Students' Conceptual Knowledge Built in a First Ordinary Differential Equations Course (Part II) Matías Camacho-Machín; Josefa Perdomo-Díaz; Manuel Santos-Trigo — 2012 The Teaching of Mathematics
The processes of transformation of technological artifacts into tools for the resolution of mathematical problems. Santos Trigo, Luz Manuel — 2003 Boletín de la Asociación Matemática Venezolana