https://cel.archives-ouvertes.fr/cel-00343873
Contributor : Laurent Chusseau
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Submitted on : Wednesday, December 3, 2008 - 1:35:51 AM
Last modification on : Monday, November 5, 2018 - 11:29:01 AM
Long-term archiving on : Thursday, October 11, 2012 - 12:31:30 PM
