Marco Giacopetti (a), Domenico Aringoli (a), Marco Materazzi (a), Gilberto Pambianchi (a) & Kristijan Posavec (b)
(a) University of Camerino, School of Science and Technology – Geology Division, Via Gentile III da Varano, Camerino (MC) 62032, Italy. E-mail: marco.giacopetti@unicam.it
(b) University of Zagreb, Department of Geology and Geological Engineering, Pierottijeva 6, 10000 Zagreb, Croatia.