ZHALDAK М., MOKROUSOVA О., and MEREZHKO Н. “ptimization of uality ndicatorsof atural kins and heir anning arameters sing ontmorillonite”. NTERNATIONAL CIENTIFIC-RACTICAL OURNAL OMMODITIES ND ARKETS, vol. 28, no. 4, Dec. 2018, pp. 75-84, https://journals.knute.edu.ua/commodities-and-markets/article/view/1125.