France

Professor Bernard Helffer, Département de Mathématiques, Université Paris Sud, Orsay.

Prof. N.Lerner and Prof. D.Yafaev; Department of Mathematics, University of Rennes.

Prof. J.Sjöstrand, Centre of Mathematics, Ecole Polytechnique, Palaiseau.

Prof. D.Robert and Prof. G.Popov, Department of Mathematics, University of Nantes