https://dumas.ccsd.cnrs.fr/dumas-00735133 Contributor : ESPE LNFConnect in order to contact the contributor Submitted on : Tuesday, September 25, 2012 - 8:30:21 PM Last modification on : Wednesday, February 23, 2022 - 1:28:06 PM Long-term archiving on: : Wednesday, December 26, 2012 - 6:30:10 AM