U. Nazarbek, U. Besterekov, P. Abdurazova, S. Nazarbekova, and Y. Raiymbekov, “Comprehensive Study of the Physical and Chemical Properties of Phosphorus Sludge and Cottrell Dust”, Period. Polytech. Chem. Eng., vol. 65, no. 4, pp. 454–461, Jan. 2021.