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2. R.A. Robinson, R.H. Stokes: Electrolyte Solutions, 2nd ed. ( Butterworths, London 1968 ) p. 462
3. J. Kieffer, G. Borchardt: “Kinetic model of silicate melts — equilibrium case”, Glastechn. Ber. 62, 337–344 (1989)
4. F.G.K. Baucke: “High-temperature sensors for oxidic glass-forming melts”, In: Sensors. A Comprehensive Survey, Chemical and Biochemical Sensors, Vol. 3, ed. by W. Göpel et al. ( VCH, Weinheim 1992 ) pp. 1155–1180
5. B. Douglas, D. McDaniel, J. Alexander: Concepts and Models of Inorganic Chemistry, 3rd ed. ( Wiley, New York 1993 ) Chap. 7