https://hal-insu.archives-ouvertes.fr/insu-00848355 Contributor : Pascale TalourConnect in order to contact the contributor Submitted on : Friday, July 26, 2013 - 9:32:35 AM Last modification on : Friday, July 26, 2013 - 10:45:34 AM Long-term archiving on: : Wednesday, April 5, 2017 - 5:02:48 PM