https://hal.univ-reims.fr/hal-02017768 Contributor : François ManceboConnect in order to contact the contributor Submitted on : Thursday, February 14, 2019 - 5:06:20 PM Last modification on : Thursday, October 14, 2021 - 1:10:10 PM Long-term archiving on: : Wednesday, May 15, 2019 - 6:32:07 PM