Bolzan, A; Fong, Celesta; Kennedy, Brendan J.; Howard, Christopher J. (1994). "A Powder Neutron Diffraction Study of Semiconducting and Metallic Niobium Dioxide". Journal of Solid State Chemistry113: 9. doi:10.1006/jssc.1994.1334. Bibcode: 1994JSSCh.113....9B.
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Bolzan, A; Fong, Celesta; Kennedy, Brendan J.; Howard, Christopher J. (1994). "A Powder Neutron Diffraction Study of Semiconducting and Metallic Niobium Dioxide". Journal of Solid State Chemistry113: 9. doi:10.1006/jssc.1994.1334. Bibcode: 1994JSSCh.113....9B.