Gullo N. (*), Martini G. (**), Tansi C. (**) & Azzaro V. (°)
(*) Indipendent professional computer engineer, Via Aldo Moro 34, Serra San Bruno (VV), Italy. E-mail: gullo.nicola@gmail.com
(**) CNR-IRPI, U.O.S. of Cosenza, Via Cavour 6, Rende (CS), Italy.
(°) Indipendent professional geologist, Via Mercurio 60, Mirto Crosia (CS), Italy.