https://hal.inria.fr/inria-00075564 Contributor : Rapport de Recherche InriaConnect in order to contact the contributor Submitted on : Wednesday, May 24, 2006 - 6:29:36 PM Last modification on : Wednesday, February 23, 2022 - 9:26:05 AM Long-term archiving on: : Friday, May 13, 2011 - 1:07:41 PM