1. Active Structures Laboratory, ULB, 50 av. Franklin Roosevelt, CP 165/42, 1050 Brussels, Belgium,
2. CRP Henri Tudor, 29 Avenue John F. Kennedy, L-1855 Luxembourg
3. Supméca Paris - LISMMA, 3 Rue Fernand Hainault, 93407 Saint Ouen CEDEX, France
4. Active Structures Laboratory, ULB, 50 av. Franklin Roosevelt, CP 165/42, 1050 Brussels, Belgium