Citation: Kuznetsov, V.Ya.; Rogachev, D.L.; Sadikov, G.G.; Dikareva, L.M.; Porai-Koshits, M.A. (1980). Structure of the double fluoride and metaniobate of potassium K F (K Nb O3)4. Four types of coordination of the light atoms in the structure. Zhurnal Strukturnoi Khimii (Issue-No. from 1981), 21, pp. 142-147.