-- Prof. Osvaldo Gervasi, Ph.D. Associate Professor Department of Mathematics and Computer Science University of Perugia Via Vanvitelli, 1 06123 Perugia (Italy) email: osvaldo.gervasi@unipg.it personal email: osvaldo.gervasi@gmail.com Tel: +39 075 5855048 Fax: +39 075 5855024 URL: http://ogervasi.unipg.it IEEE and ACM Senior Member Department Deputy Chair