“Magnesium Extraction of Ferronickel Slag Waste Processed by Alkali Fusion and Hydrochloric Acid Leaching”. Journal of Mining and Metallurgy, Section B: Metallurgy, vol. 57, no. 2, July 2021, pp. 225-33, https://test.aseestant.ceon.rs/index.php/jmm/article/view/25364.