https://hal.univ-reunion.fr/hal-01555398 Contributor : Martine BarretConnect in order to contact the contributor Submitted on : Tuesday, July 4, 2017 - 10:12:59 AM Last modification on : Wednesday, November 3, 2021 - 4:26:57 AM Long-term archiving on: : Thursday, December 14, 2017 - 10:30:42 PM