https://hal-insu.archives-ouvertes.fr/insu-00923263 Contributor : Pascale TalourConnect in order to contact the contributor Submitted on : Thursday, January 2, 2014 - 11:02:17 AM Last modification on : Friday, February 11, 2022 - 1:02:02 PM Long-term archiving on: : Saturday, April 8, 2017 - 9:43:24 AM