https://halshs.archives-ouvertes.fr/halshs-00009555
Contributor : Claude Paraponaris
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Submitted on : Thursday, March 9, 2006 - 2:33:53 PM
Last modification on : Friday, December 14, 2018 - 1:18:34 AM
Long-term archiving on: Saturday, April 3, 2010 - 8:21:09 PM