Sudavtsova, Valentina, et al. “THE THERMODYNAIC PROPERTIES OF MELTS OF THE SYSTEM MgO – Al2O3 – SiO2, MgO – CaF2 – SiO2, Al2O3 – CaF2 – SiO2”. Proceedings of National Aviation University (archive), vol. 48, no. 3, Apr. 2012, pp. 172-5, doi:10.18372/2306-1472.48.65.