https://cel.archives-ouvertes.fr/hal-03106243 Contributor : Sofia PapastamkouConnect in order to contact the contributor Submitted on : Monday, January 11, 2021 - 4:26:49 PM Last modification on : Wednesday, March 23, 2022 - 3:50:37 PM Long-term archiving on: : Monday, April 12, 2021 - 7:12:42 PM