R. Müller, and K. Thoring. Leading Innovation through Design: Proceedings of the DMI 2012 International Research Conference, page 181-192. University of Virginia, (2012)
M. na, and M. Carrasco. Internacional Technology, Education and Development Conference, (March 2010)De la versión en Cd-Rom: ISBN 978-84-613-5538-9 (proceedings);
ISBN 978-84-613-5536-5 (abstracts).
M. Rashid, U. Uzma-Muhmood, and A. Ayse-Gulmez. Proceedings of the 9th WSEAS international conference on Distance
learning and web engineering, page 29 -- 37. Stevens Point, Wisconsin, USA; WSEAS, World Scientific and Engineering Academy and Society, (2009)