“A study on phase equilibria in the CaO-Al2O3-SiO2-‘Nb2O5’(5 mass pct) system in reducing atmosphere”, J Min & Metal B Metallurgy, vol. 49, no. 2, p. 145, Jul. 2013, Accessed: Jun. 11, 2026. [Online]. Available: https://test.aseestant.ceon.rs/index.php/jmm/article/view/2438