^ 2.02.1Mayer, I.; Levy, E.; Glasner, A. The crystal structure of EuSO4and EuCO3. Acta Crystallographica (International Union of Crystallography (IUCr)). 1964-08-01, 17 (8): 1071–1072. ISSN 0365-110X. doi:10.1107/s0365110x64002699.
^Vegas, Angel. Inorganic 3D structures : the extended zintl-klemm concept. Berlin Heidelberg New York: Springer. 2011. ISBN 3-642-20340-X. OCLC 745001442.