Myrzaliyeva, S., S. Akilbekova, H. Retnawati, and S. Yermishin. “The Environmental Efficiency of the Combined Combustion of Low Grade Ekibastuz Coal and Plant Biomass”. Kompleksnoe Ispolzovanie Mineralnogo Syra = Complex Use of Mineral Resources, vol. 347, no. 4, Sept. 2026, pp. 5-14, doi:10.31643/2028/6445.35.