1. University of Bologna,Department of Electrical, Electronic, and Information Engineering "Guglielmo Marconi" - DEI,Cesena,Italy,47522
2. University of Firenze,Department of Statistics, Computer Science, Applications "G. Parenti",Firenze,Italy,50134
3. University of Florence,Experimental and Clinical Biomedical Sciences "Mario Serio",Firenze,Italy,50139