Shen, Y., Y. Ma, P. Yang, B. Lu, Y. Dou, J. Tian, W. Guo, and Z. Zhang. “Effect of FeO Content on Melting Characteristics and Structure of Nickel Slag”. Journal of Mining and Metallurgy, Section B: Metallurgy, Vol. 58, no. 3, Nov. 2022, pp. 427-38, https://aseestant.ceon.rs/index.php/jmm/article/view/37018.