1. Professor, Dipartimento di Ingegneria Idraulica, Geotecnica e Ambientale, Univ. of Napoli “Federico II;” Via Claudio 21, 80125, Naples, Italy.
2. Associate Professor, Dipartimento di Ingegneria, Univ. of Sannio, Piazza Roma 21, 82100, Benevento, Italy.
3. Assistant Professor, Dipartimento di Ingegneria, Univ. of Sannio, Piazza Roma 21, 82100, Benevento, Italy (corresponding author).
4. Caroline and William N. Lehrer Distinguished Chair in Water Engineering Professor, Dept. of Biological and Agricultural Engineering, and Dept. of Civil and Environmental Engineering, Texas A&M Univ., 2117 TAMU, College Station, TX 77842-2117.