https://hal.inria.fr/hal-02361388 Contributor : Jean-Claude BermondConnect in order to contact the contributor Submitted on : Wednesday, November 13, 2019 - 1:18:38 PM Last modification on : Wednesday, November 17, 2021 - 12:33:37 PM Long-term archiving on: : Friday, February 14, 2020 - 3:28:01 PM