https://hal-mines-paristech.archives-ouvertes.fr/hal-00790214 Contributor : Magalie PrudonConnect in order to contact the contributor Submitted on : Tuesday, February 19, 2013 - 4:21:33 PM Last modification on : Wednesday, November 17, 2021 - 12:31:19 PM Long-term archiving on: : Monday, May 20, 2013 - 4:04:03 AM