https://hal-amu.archives-ouvertes.fr/hal-01630381 Contributor : Marie-Noëlle RoubaudConnect in order to contact the contributor Submitted on : Sunday, November 19, 2017 - 6:32:42 PM Last modification on : Thursday, July 14, 2022 - 4:05:39 AM Long-term archiving on: : Tuesday, February 20, 2018 - 12:27:20 PM