A neutron diffraction study of the martensitic transformations in aged Ni-rich NiTi alloys H. Sitepu, W.W. Schmahl, G. Eggeler, J. Khalil Allafi et D.M. Többens J. Phys. IV France, 112 (2003) 643-646 DOI: 10.1051/jp4:2003965