1. KNb4O5F and NbO2 crystal structures. Structural aspect of chemical decomposition of K2−xNb4O3(O,F)3F in the melt of sodium and potassium chlorides;Arakcheeva;Crystallography Reports,1999
2. Products and processes of vuonnemite transformations at the low-temperature alteration of ultra-agpaitic pegmatites;Azarova;Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva,2002
3. EELS of niobium and stoichiometric niobium-oxide phases. I. Plasmon and near-edges fine structure;Bach;Microsc. Microanal.,2009
4. Vladimir Vernadsky;Balandin,1982
5. The crystal structure and mineralogical description of a Na-dominant komarovite from the Ilímaussaq alkaline complex, South Greenland;Balić-Žunić;Neues Jb. Mineral. Monat.,2002