Monsigny Michel, PhD Emeritus Professor University of Orleans, France CNRS 1, rue Charles-Sadron 45071 Orleans cedex 02 France Phone: 33 238 25 55 57 FAX: 33 238 25 55 57 E-mail: monsigny@cnrs-orleans.fr
Phone: 33 238 25 55 57 FAX: 33 238 25 55 57 E-mail: monsigny@cnrs-orleans.fr