.

Saldau , P. Y. and Zhirnova , N. A. (1948) “Fusibility diagram of the ternary system ZrO₂—MgO—AL₂O; On the problem of finding new highly refractory materials”, Journal of Mining Institute, 20, pp. 59-70. Available at: https://pmi.spmi.ru/pmi/article/view/14873 (Accessed: 25 April 2025).