https://hal.univ-reunion.fr/hal-02452494 Contributor : Réunion UnivConnect in order to contact the contributor Submitted on : Thursday, January 23, 2020 - 2:51:05 PM Last modification on : Thursday, January 13, 2022 - 11:50:04 AM Long-term archiving on: : Friday, April 24, 2020 - 2:46:38 PM