https://hal-sfo.ccsd.cnrs.fr/sfo-00292543 Contributor : Consortium-Opi Consortium-OpiConnect in order to contact the contributor Submitted on : Tuesday, July 1, 2008 - 5:03:35 PM Last modification on : Sunday, June 26, 2022 - 11:48:22 AM Long-term archiving on: : Friday, May 28, 2010 - 7:46:06 PM