https://hal.inria.fr/inria-00076445 Contributor : Rapport de Recherche InriaConnect in order to contact the contributor Submitted on : Wednesday, May 24, 2006 - 9:02:01 PM Last modification on : Thursday, February 3, 2022 - 11:15:47 AM Long-term archiving on: : Friday, May 13, 2011 - 8:37:08 PM