^Polesitskii, A.; Tolmachev, P. Solubility and activity of the halates of some bivalent metals. III. Solubility and activity of Ra(IO3)2 in water and in solutions of electrolytes. Compt. rend. acad. sci. U. R. S. S. [N. S.], 1936. 3: 319-320.
^Richard C. Ropp. Encyclopedia of the Alkaline Earth Compounds. pp 99. ISBN9780444595539