Auto-tuner: Tuning commercial PID controllers on demand in industrial environments. - Javier Portillo; Marga Marcos; Dario Orive (ECC, 1999)

Contributions to the design of real time distributed control systems. - Javier Portillo; Marga Marcos (ECC, 2001)

Breadth-first search and its application to image processing problems. - Jaime Silvela; Javier Portillo (IEEE Trans. Image Process., 2001)

Loose Integration of COTS Tools for the Development of Real Time Distributed Control Systems. - Javier Portillo; Oskar Casquero; Marga Marcos (ICCBSS, 2005)

Bildu: Recopilar y Unificar Recursos Digitales de Aprendizaje para Motivar su Uso. - Oskar Casquero; Javier Portillo; Manuel Benito; Jesús Romo (SPDECE, 2007)

Nativos digitales y modelos de aprendizaje. - Felipe García; Javier Portillo; Jesús Romo; Manuel Benito (SPDECE, 2007)

OpenCourseWare: una alternativa para la publicación en abierto de contenidos educativos. - Jesús Romo; Manuel Benito; Javier Portillo; Oskar Casquero (SPDECE, 2007)

iPLE Network: an integrated eLearning 2.0 architecture from a university's perspective. - Oskar Casquero; Javier Portillo; Ramón Ovelar Beltrán; Manuel Benito; Jesús Romo (Interact. Learn. Environ., 2010)

PLEs in Higher Education: Exploring the Transference of Web 2.0 Social Affordances. - Oskar Casquero; Javier Portillo; Ramón Ovelar Beltrán; Jesús Romo; Manuel Benito (Int. J. Virtual Pers. Learn. Environ., 2013)