Citation: Martin, C. D.; Crichton, W. A.; Liu, H.; Prakapenka, V.; Chen, J.; Parise, J. B. (2006). Rietveld structure refinement of perovskite and post-perovskite phases of NaMgF3 (neighborite) at high pressures Sample: (b), P = 54 GPa. American Mineralogist, 91, pp. 1703-1706.