https://hal.univ-lorraine.fr/hal-01791887 Contributor : Jean-Luc LiezConnect in order to contact the contributor Submitted on : Tuesday, May 15, 2018 - 8:18:40 AM Last modification on : Thursday, May 31, 2018 - 1:15:37 AM Long-term archiving on: : Monday, September 24, 2018 - 3:40:42 PM