https://hal-lirmm.ccsd.cnrs.fr/lirmm-00365276 Contributor : Bruno RouzeyreConnect in order to contact the contributor Submitted on : Monday, March 2, 2009 - 6:27:06 PM Last modification on : Thursday, March 31, 2022 - 11:02:32 AM Long-term archiving on: : Tuesday, June 8, 2010 - 7:57:41 PM