Zhang, G.-H., K.-C. Chou, and X.-Y. Lv. “INFLUENCE OF DIFFERENT COMPONENTS ON VISCOSITIES OF CaO-MgO-Al2O3-SiO2 MELTS”. Journal of Mining and Metallurgy, Section B: Metallurgy, Vol. 50, no. 2, Oct. 2014, p. 157, https://aseestant.ceon.rs/index.php/jmm/article/view/4332.