Microlensing towards M 31 with MDM dataS. Calchi Novati, Ph. Jetzer, G. Scarpetta, Y. Giraud-Héraud, J. Kaplan, S. Paulin-Henriksson and A. GouldA&A, 405 3 (2003) 851-857DOI: https://doi.org/10.1051/0004-6361:20030667