https://hal-lirmm.ccsd.cnrs.fr/lirmm-02059798 Contributor : Philippe LangloisConnect in order to contact the contributor Submitted on : Wednesday, March 6, 2019 - 8:24:12 PM Last modification on : Wednesday, November 3, 2021 - 7:45:02 AM Long-term archiving on: : Friday, June 7, 2019 - 7:45:17 PM