https://hal-amu.archives-ouvertes.fr/hal-02506239 Contributor : Laure MerlandConnect in order to contact the contributor Submitted on : Thursday, March 12, 2020 - 11:07:52 AM Last modification on : Wednesday, November 3, 2021 - 9:45:02 AM Long-term archiving on: : Saturday, June 13, 2020 - 2:04:36 PM