https://hal-paris1.archives-ouvertes.fr/hal-00344628
Contributor : François Gaudu <>
Submitted on : Friday, December 5, 2008 - 12:04:05 PM Last modification on : Sunday, January 19, 2020 - 6:38:32 PM Long-term archiving on: : Tuesday, June 28, 2011 - 6:08:26 PM