1. University of Padova,Dept. of Industrial Engineering, Dept. of Information Engineering, via Gradenigo 6A,Padova,Italy
2. University of Padova,Dept. of Information Engineering, via Gradenigo 6B,Padova,Italy
3. University of Padova,Dept. of Information Engineering, Dept. of Physics and Astronomy via Gradenigo 6B,Padova,Italy