M Georges Afonso Technician University Paris CitéCiTCoM work Email: georges.afonso@u-paris.frINTERNET Tel :: Number M Pierre Bonnay Studies Engineer CNRSCiTCoM work Email: pierre.bonnay@u-paris.frINTERNET Tel :: Number M Thomas Duco-Duval Technician University Paris CitéCiTCoM work Email: thomas.ducos-duval@u-paris.frINTERNET Tel :: Number M Vincent Jactel Assistant Engineer CNRSCiTCoM work Email: vincent.jactel@u-paris.frINTERNET Tel :: Number