https://halshs.archives-ouvertes.fr/halshs-01311865 Contributor : Laila NehméConnect in order to contact the contributor Submitted on : Wednesday, May 4, 2016 - 5:06:25 PM Last modification on : Thursday, May 12, 2022 - 3:27:45 AM Long-term archiving on: : Tuesday, November 15, 2016 - 8:35:33 PM