Francesco Faccini (a), Ilaria Cinzia Galiano (b), Guido Paliaga (a) & Anna Roccati (c)
(a) Department of Earth, Environmental and Life Sciences , University of Genoa, corso Europa 26, 16132 Genoa, Italy. E-mail: faccini@unige.it
(b) Department of Civil and Environmental Engineering and Architecture, University of Cagliari, via Marengo 2, 09123 Cagliari, Italy. E-mail: ilariagaliano@yahoo.it
(C) National Research Council, Research Institute for Geo-Hydrological Protection, Perugia, Italy. E-Mail: Anna.roccati@irpi.cnr.it