https://hal-insu.archives-ouvertes.fr/insu-00923234 Contributor : Pascale TalourConnect in order to contact the contributor Submitted on : Thursday, January 2, 2014 - 10:16:43 AM Last modification on : Thursday, January 2, 2014 - 10:36:31 AM Long-term archiving on: : Saturday, April 8, 2017 - 9:41:08 AM