Phase transformation and microstructures in Ni-Mn-Ga ferromagnetic shape memory alloys K. Tsuchiya, H. Nakamura, D. Ohtoyo, H. Nakayama, M. Umemoto et H. Ohtsuka J. Phys. IV France, 11 PR8 (2001) Pr8-263-Pr8-268 DOI: 10.1051/jp4:2001845