https://hal-univ-pau.archives-ouvertes.fr/hal-01884869 Contributor : GAELLE LANNUZELConnect in order to contact the contributor Submitted on : Tuesday, October 2, 2018 - 11:21:01 AM Last modification on : Monday, March 21, 2022 - 2:50:47 PM Long-term archiving on: : Thursday, January 3, 2019 - 12:42:57 PM