https://hal-univ-paris.archives-ouvertes.fr/hal-01715706 Contributor : Cathy ChatelConnect in order to contact the contributor Submitted on : Thursday, February 22, 2018 - 11:18:39 PM Last modification on : Wednesday, January 6, 2021 - 5:14:07 PM Long-term archiving on: : Wednesday, May 23, 2018 - 3:27:57 PM