https://hal.univ-reunion.fr/hal-02406637 Contributor : Réunion UnivConnect in order to contact the contributor Submitted on : Thursday, December 12, 2019 - 11:02:31 AM Last modification on : Wednesday, September 29, 2021 - 12:38:04 PM Long-term archiving on: : Friday, March 13, 2020 - 9:58:42 PM