from 8/3 to 18/3/2009. invited professor of University Paris 13
from 1/11 to 20/12/2008
from 7/5/2008 to 17/7/2008
from 6/2/2008 to 6/3/2008, invited Professor of Univ. Paris 13
from 1/9/2007 to 28/2/2008, visiting researcher position (CNRS)
from 09/07/2007 to 20/07/2007
from 26/4/2007 to 2/6/2007
from 12/02/2007 to 03/03/2007, and 3->8/9/2007.
from 8 to 23 september 2006
21-23 May 2006
9-19 may 2006
from may to june 2006 (two months), invited maître de conférences.
from may to october 2006 (six months), postdoc of université Paris 13.
