https://hal.inria.fr/inria-00100322 Contributor : Laurent BuséConnect in order to contact the contributor Submitted on : Tuesday, September 26, 2006 - 11:03:06 AM Last modification on : Friday, February 4, 2022 - 3:20:13 AM Long-term archiving on: : Tuesday, April 6, 2010 - 1:12:50 AM