A Practical Approach to Lighting Design Course in an Electrical Engineering Programme. - Manuel Travassos Valdez; C. I. Faustino Agreira; Carlos Machado Ferreira; Fernando Pires Maciel Barbosa (Int. J. Emerg. Technol. Learn., 2008)

Software Packages to Support Electrical Engineering Virtual Lab. - Manuel Travassos Valdez; Carlos Machado Ferreira; Fernando Pires Maciel Barbosa (Int. J. Online Eng., 2012)

Desktop VR systems - A distance learning method and technology. - Manuel Travassos Valdez; Carlos Machado Ferreira; Fernando Pires Maciel Barbosa (EDUCON, 2013)

Teaching Circuit Theory using a Desktop VR System. - Manuel Travassos Valdez; Carlos Machado Ferreira; Fernando Pires Maciel Barbosa (Int. J. Eng. Pedagog., 2013)

Virtual labs in electrical engineering education - The VEMA environment. - Manuel Travassos Valdez; Carlos Machado Ferreira; Maria Joao M. Martins; Fernando Pires Maciel Barbosa (ITHET, 2014)

3D virtual reality experiments to promote electrical engineering education. - Manuel Travassos Valdez; Carlos Machado Ferreira; Maria Joao M. Martins; Fernando Pires Maciel Barbosa (ITHET, 2015)

The goal of a teaching methodology in higher education. - Manuel Travassos Valdez; Carlos Machado Ferreira; Fernando Pires Maciel Barbosa (EDUCON, 2018)

Electrical engineering course using PBL - The lighting of historical buildings. - Manuel Travassos Valdez; Carlos Machado Ferreira; Fernando Pires Maciel Barbosa (EDUCON, 2018)

Implementation of methodological strategies, attitudes and instruments as a PBL resource. - Manuel Travassos Valdez; Carlos Machado Ferreira; Fernando Pires Maciel Barbosa (ITHET, 2018)

Enhancing Electric Energy Systems Final Project through Real Engineering Design Problems. - Manuel Travassos Valdez; Carlos Machado Ferreira; Fernando Pires Maciel Barbosa (EDUCON, 2019)