The Role of the Nature of Magnetic Coupling on the Martensitic Transformation in Fe-Ni M. Acet, E.F. Wassermann, K. Andersen, A. Murani and O. Schärpff J. Phys. IV France, 07 C5 (1997) C5-401-C5-404 DOI: 10.1051/jp4:1997563