Citation: Mitchell, R. H.; Alexander, M.; Cranswick, L. M. D.; Swainson, I. P. (2007). A powder neutron diffraction study of the crystal structure of the fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K Sample: T = 75 K. Physics and Chemistry of Minerals, 34, pp. 705-712.