https://hal.inria.fr/hal-00796112 Contributor : Alain MonteilConnect in order to contact the contributor Submitted on : Thursday, March 7, 2013 - 11:09:42 AM Last modification on : Friday, February 4, 2022 - 3:08:44 AM Long-term archiving on: : Saturday, June 8, 2013 - 5:10:09 AM