English: Krebs B., Hasse K.D. (1976). "Refinements of the Crystal Structures of KTcO4, KReO4 and OsO4. The Bond Lengths in Tetrahedral Oxo-Anions and Oxides of d0 Transition Metals". Acta Crystallographica B32: 1334–1337. DOI:10.1107/S056774087600530X.
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