https://hal-cnrs.archives-ouvertes.fr/hal-03434002 Contributor : Eric ChassefièreConnect in order to contact the contributor Submitted on : Thursday, November 18, 2021 - 9:34:15 AM Last modification on : Friday, December 3, 2021 - 11:42:49 AM Long-term archiving on: : Saturday, February 19, 2022 - 6:24:29 PM