https://hal.inria.fr/hal-01096151 Contributor : Denis RoegelConnect in order to contact the contributor Submitted on : Tuesday, December 16, 2014 - 8:36:36 PM Last modification on : Saturday, October 16, 2021 - 11:26:09 AM Long-term archiving on: : Monday, March 23, 2015 - 2:36:01 PM