https://hal-imt.archives-ouvertes.fr/hal-01864135 Contributor : Henri MaitreConnect in order to contact the contributor Submitted on : Wednesday, August 29, 2018 - 2:38:05 PM Last modification on : Thursday, March 3, 2022 - 11:28:03 AM Long-term archiving on: : Friday, November 30, 2018 - 4:17:00 PM