1. S. M. Lakiza, Ya. S. Tishchenko, V. P. Red’ko, and L. M. Lopato, “The Al2O3–HfO2–La2O3 phase diagram. I. Liquidus and solidus surfaces,” Powder Metall. Met. Ceram., 49, No. 9–10, 516–527 (2010).
2. S. M. Lakiza and L. M. Lopato, “Interactions in the Al2O3–ZrO2–La2O3 system at 1250 and 1650°C,” Powder Metall. Met. Ceram., 39, No. 7–8, 403–406 (2000).
3. S. M. Lakiza and L. M. Lopato, “Phase diagram of the Al2O3–ZrO2–La2O3, J. Europ. Ceram. Soc., 25, No. 8, 1373–1380 (2005).
4. A. V. Shevchenko, L. M. Lopato, and A. A. Zaitseva, “Interaction of HfO2 with lanthanum, praseodymium, and neodymium oxides at high temperatures,” Neorg. Mater., 20, No. 9, 1530–1534 (1984).
5. R. S. Roth, “Pyrochlore-type compounds containing double oxides of trivalent and tetravalent ions,” J. Res. Nat. Bur. Stand., 56, No. 1, 17–25 (1956).