https://dumas.ccsd.cnrs.fr/dumas-00793589 Contributor : ESPE LNFConnect in order to contact the contributor Submitted on : Thursday, March 7, 2013 - 8:29:00 PM Last modification on : Wednesday, February 23, 2022 - 1:28:06 PM Long-term archiving on: : Saturday, June 8, 2013 - 4:30:18 AM