Rumiantseva, Y., et al. “Synthesis of MgAl2O4 Spinel in MgO–Al2O3 and MgO–Al2O3–Al Systems via HPHT Sintering”. Acta Physica Polonica A, vol. 147, no. 6, July 2025, p. 456, https://doi.org/10.12693/APhysPolA.147.456.