Franzosini P., Sanesi M. Thermodynamic and transport properties of organic salts. - IUPAC Chemical Data Series, No. 28. - Pergamon Press, 1980. - pp. 75
Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1539