Morales González, Álvaro Ignacio, Luis Eduardo Peláez Valencia, and Ricardo Alonso Hurtado Mosquera. “System for the Information Report through the Mobile Phone Without the Mediation of Telephone Operators”. Entre ciencia e ingeniería 4, no. 7 (June 30, 2010): 9–31. Accessed November 6, 2026. https://revistas.ucp.edu.co/index.php/entrecienciaeingenieria/article/view/745.