A. D'Ulizia, F. Ferri, and P. Grifoni. On the Move to Meaningful Internet Systems: OTM 2008 Workshops, volume 5333 of Lecture Notes in Computer Science, Springer, Berlin, (2008)
D. del Valle-Agudo, J. Calle-Gómez, D. Cuadra-Fernández, and J. Rivero-Espinosa. Human-Computer Interaction: Novel Interaction Methods and Techniques, 13th International Conference, HCI International 2009, San Diego, CA, USA, Proceedings, Part II, volume 5611 of Lecture Notes in Computer Science, Springer, Berlin, (2009)
F. Ferri, P. Grifoni, and S. Paolozzi. Knowledge-Based Intelligent Information and Engineering Systems: KES 2007 -- WIRN 2007, 11th International Conference, KES 2007, XVII Italian Workshop on Neural Networks, Vietri sul Mare, Italy, volume 4693 of Lecture Notes in Artificial Intelligence, Springer, Berlin, (2007)