S. Núñez, J. de Andrés, J. Gayo, and P. Ordoñez. Emerging Technologies and Information Systems for the Knowledge Society, LNCS 5288, page 593--599. Athens, Greece, Springer, (2008)
A. Khiat, G. Diallo, B. Yaman, E. Jiménez-Ruiz, and M. Benaissa. On the Move to Meaningful Internet Systems: OTM 2015 Conferences - Confederated International Conferences: CoopIS, ODBASE, and C&TC 2015, Rhodes, Greece, October 26-30, 2015, Proceedings, page 545--553. (2015)