Leonov, A. A., N. S. Izotova, A. V. Smirnov, and N. M. Telyakov. “The Way of Waste Gases Wet Purification оf Metallurgical Furnaceusing Manganese Materials”. Journal of Mining Institute 192 (1): 83. Accessed September 28, 2020. http://pmi.spmi.ru/index.php/pmi/article/view/6324.