https://halshs.archives-ouvertes.fr/halshs-02099282 Contributor : SANDRINE BOULERNEConnect in order to contact the contributor Submitted on : Sunday, April 14, 2019 - 5:58:09 PM Last modification on : Thursday, May 12, 2022 - 3:39:43 PM Long-term archiving on: : Monday, July 15, 2019 - 12:16:13 PM