https://hal-amu.archives-ouvertes.fr/hal-03224894 Contributor : Patrick FerrandConnect in order to contact the contributor Submitted on : Wednesday, May 12, 2021 - 8:59:29 AM Last modification on : Tuesday, January 18, 2022 - 2:26:06 PM Long-term archiving on: : Friday, August 13, 2021 - 6:15:58 PM