https://hal-amu.archives-ouvertes.fr/hal-01672577 Contributor : Raffaele RuggieroConnect in order to contact the contributor Submitted on : Tuesday, December 26, 2017 - 11:45:06 AM Last modification on : Monday, January 3, 2022 - 10:04:58 AM Long-term archiving on: : Tuesday, March 27, 2018 - 12:25:26 PM