https://tel.archives-ouvertes.fr/tel-02474464 Contributor : Bénédicte BucherConnect in order to contact the contributor Submitted on : Tuesday, February 11, 2020 - 1:55:10 PM Last modification on : Tuesday, May 4, 2021 - 6:23:42 PM Long-term archiving on: : Tuesday, May 12, 2020 - 2:20:57 PM