Aufrecht, J., Baumann, W., Leineweber, A., Duppel, V., & Mittemeijer, E. J. (2010). Layer-stacking irregularities in C36-type Nb-Cr and Ti-Cr laves phases and their relation with polytypic phase transformations. Philosophical Magazine, 90, 3149-3175. doi:10.1080/14786435.2010.482068.