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\bibitem{Boulay_etal2014} {\textquotedblleft}\textit{Critical assessments and thermodynamic modeling of BaO-SiO$_{2}$ and SiO$_{2}$-TiO$_{2}$ systems and their extensions into liquid immiscibility in the BaO-SiO$_{2}$-TiO$_{2}$ system}{\textquotedblright}. Boulay E, Nakano J, Turner S, Idrissi H, Schryvers D, Godet S, Calphad computer coupling of phase diagrams and thermochemistry \textbf{47}, 68 (2014).   http://doi.org/10.1016/j.calphad.2014.06.004

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