1. Institute of Crystallography (IC); National Research Council of Italy (CNR); via G. Amendola 122/o 70126 Bari Italy
2. Department of Economics; University of Foggia; Largo Papa Giovanni Paolo II, 1 71121 Foggia Italy
3. National Research Council of Italy (CNR) - Institute on Membrane Technology (ITM); via P. Bucci Cubo 17/C 87036 Rende (CS) Italy
4. Department of Agricultural Sciences; University of Foggia; Food and Environment - Via Napoli 25 71121 Foggia Italy