https://hal-insu.archives-ouvertes.fr/insu-00723817 Contributor : Pascale TalourConnect in order to contact the contributor Submitted on : Tuesday, August 14, 2012 - 2:12:37 PM Last modification on : Tuesday, October 19, 2021 - 6:58:00 PM Long-term archiving on: : Thursday, November 15, 2012 - 2:25:50 AM