S.B., Y., G. P.S, B. I.Yu., K. A.V., Z. I.G., and O. A.A. “Production of Synthetic Wollastonite Using Gypsum Technogenic Raw Materials”. KnE Materials Science, Vol. 6, no. 1, Dec. 2020, pp. 511–524, doi:10.18502/kms.v6i1.8135.