R. K. Niyazbekova, M. T. Userbaev, G. A. Kokayeva, L. S. Shansharova, M. D. Konkanov, and S. A. Abdulina, “Ash Deposits CHP – as an Additional Source of Raw Material for Construction Production ”, Chemical Engineering Transactions, vol. 70, pp. 649-654, Aug. 2018.