1. Khimicheskie reaktivy i vysokochistye veshchestva (katalog) (Chemical Reagents and High-purity Substances (Catalog)), Moscow: Khimiya, 1983.
2. Pozin, M.E., Tekhnologiya Mineral’nykh Solei (Technology of Mineral Salts), Leningrad: Khimiya, 1974, vol. 1.
3. Frowein, F. and Muhlendahl, E., Z. Ang. Chem., 1926, vol. 39, pp. 1488–1491.
4. Protsenko, P.I., Razumovskaya, O.N., and Brykova, N.A., Spravochnik po rastvorimosti nitritnykh i nitratnykh solevykh sistem (Handbook on Solubility of Nitrite and Nitrate Salt Systems), Moscow: Khimiya, 1971.
5. Spravochnik khimika (Handbook of a Chemist), Nikol’skii, B.P., Ed., Moscow: Khimiya, 1965, vol. 3.