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2. The viscosity of magmatic silicate liquids: A model for calculation;Bottinga;Amer. J. Sci.,1972
3. The ternary system: Na2SiO3-Fe2O3-SiO2;Bowen;Amer. J. Sci.,1930
4. Extended X-ray absorption fine structure (EXAFS) study of iron-bearing silicate glasses: Iron coordination environment and oxidation state;Brown;Geol. Soc. Amer. Abstr. Prog.,1979
5. Structural state of iron in the system Na2O-SiO2-Fe-O;Danckwerth;Carnegie Inst. Wash. Yearb.,1982