1. Allen, L.N., Jr., 1954, “Recovery of manganese from low-grade ores,” Chemical Engineering Progress, Vol. 50, No. 1, pp. 9–13
2. de Baat, W.C., 1926, “Sur l’acid dithionique et ses sels,” Recueil des Travaux Chimiques des Pays-Bas, Vol. 45, p. 237.
3. Feng, G., and Lei, Y., 1992, “The measurements of thermodynamic functions of manganese dithionate hydrates,” Journal of Guangxi University (Natural Science Edition), Vol. 2.
4. Garrett, D.E., 2001, “Sodium sulfate,” Handbook of Deposits, Processing, Properties, and Use, Academic Press, p. 220–225.
5. Gaskell, D.R., 1981, “Ellingham diagrams,” An Introduction to Metallurgical Thermodynamics, New York: McGraw Hill, p. 287.