https://hal.univ-rennes2.fr/hal-02930545 Contributor : Gilles BoucheritConnect in order to contact the contributor Submitted on : Friday, September 4, 2020 - 2:23:26 PM Last modification on : Friday, April 22, 2022 - 3:31:40 AM Long-term archiving on: : Wednesday, December 2, 2020 - 8:43:28 PM