Rodivilov, S., T. Ketegenov, K. Kamunur, Kalugin С., and A. Karagulanova. “Influence of an Alkali Additive on the Mechanical Strength of Coal Briquettes”. Combustion and Plasma Chemistry, vol. 19, no. 4, Dec. 2021, pp. 319-25, doi:10.18321/cpc470.