https://hal-normandie-univ.archives-ouvertes.fr/hal-02086936 Contributor : François FéliuConnect in order to contact the contributor Submitted on : Tuesday, April 23, 2019 - 10:20:59 AM Last modification on : Wednesday, March 2, 2022 - 5:06:02 PM Long-term archiving on: : Wednesday, July 24, 2019 - 12:06:14 PM