1. G. I. Zhmoidin and A. K. Chatterjee, “Slags for Metal Refining. Properties Variations of System CaO-Al2O3-CaF2” (Metallugiya, Moscow, 1986) p. 286.
2. K. C. Mills and B. J. Keene, Int. Met. Rev.
1 (1981) 21.
3. R. Ries and K. Schwerdtfeger, Arch. Eisenh-ü-ttenw.
51 (1980) 123.
4. Yu. G. Izmlov, “Issledovaniye sistemy CaO-Al2O3-CaF2 v usloviyakh ispareniya ftoristykh soedinenii”, Avtoref. kand. diss., Chelyabinsk (1976).
5. D. Ya. Povolotskii, G. P. Vyatkin and Yu. G. Izmailov, Sb. Nauch. Trudov Chelyabinsk. Politekhn. Inst. No. 166 (1975) 35.