Computational Science and Its Applications – ICCSA 2008 International Conference, Perugia, Italy, June 30 – July 3, 2008, Proceedings, Part I - Gervasi, Osvaldo; Murgante, Beniamino; Laganà, Antonio; Taniar, David; Mun, Youngsong; Gavrilova, Marina L. (Springer Berlin Heidelberg, 2008)