1. Department of Applied Science and Technology (DISAT) Politecnico di Torino Corso Duca degli Abruzzi, 24 Torino 10129 Italy
2. Università degli Studi di Torino Via Pietro Giuria 7 Torino 10125 Italy
3. Thales Alenia Space 5 Allée des gabians, BP99 Cannes La Bocca Cedex 06156 France
4. University of Perugia Civil and Environment Engineering Department Piazza Università Perugia 06123 Italy