https://hal.inria.fr/inria-00075706 Contributor : Rapport de Recherche InriaConnect in order to contact the contributor Submitted on : Wednesday, May 24, 2006 - 6:51:52 PM Last modification on : Friday, February 4, 2022 - 3:19:39 AM Long-term archiving on: : Friday, May 13, 2011 - 2:29:04 PM