https://hal.inria.fr/hal-00696394 Contributor : Juliusz ChroboczekConnect in order to contact the contributor Submitted on : Friday, May 18, 2012 - 5:31:16 PM Last modification on : Saturday, June 25, 2022 - 8:51:46 PM Long-term archiving on: : Sunday, August 19, 2012 - 2:21:38 AM