https://hal-univ-fcomte.archives-ouvertes.fr/hal-02283761 Contributor : Jenny GuillaumeConnect in order to contact the contributor Submitted on : Wednesday, September 11, 2019 - 10:56:37 AM Last modification on : Wednesday, November 3, 2021 - 6:57:17 AM Long-term archiving on: : Saturday, February 8, 2020 - 12:10:38 AM