https://hal-ujm.archives-ouvertes.fr/ujm-02292919 Contributor : Razvan StoianConnect in order to contact the contributor Submitted on : Tuesday, November 10, 2020 - 8:19:27 PM Last modification on : Sunday, June 26, 2022 - 12:16:54 PM Long-term archiving on: : Friday, February 12, 2021 - 12:28:29 PM