1. University of Pisa,Department of Information Engineering,Pisa,Italy
2. University of Bologna,Department of Physics and Astronomy,Italy
3. Struttura Idro-Meteo-Clima, Arpae Emilia Romagna,Bologna,Italy
4. CNR-IEIIT,Milan,Italy
5. DICA, Politecnico di Milano,Milan,Italy
6. Artys, Darts Engineering srl,Genoa,Italy
7. University of Genoa,DITEN,Genoa,Italy
8. CNR-ISAC,Rome,Italy