- José Antonio Gutiérrez de Mesa, Roberto Barchino, José M. Gutiérrez Martínez, editors, Proceedings of the I. International Conference on Ubiquitous Computing: Applications, Technology and Social Issues, Alcalá de Henares, Madrid, Spain, June 7-9, 2006. Volume 208 of CEUR Workshop Proceedings, CEUR-WS.org, 2006.