Wang, Z., Q. Shu, and K. Chou. “Crystallization Characteristics of B2O3 and TiO2-Bearing Glassy Fluoride-Free Mold Fluxes”. Journal of Mining and Metallurgy, Section B: Metallurgy, Vol. 56, no. 2, Sept. 2020, pp. 279-87, https://aseestant.ceon.rs/index.php/jmm/article/view/24222.