KOVAL О., and GUTS В. “inetic heory of the oods uality odeling and products’ helf ife etermination”. NTERNATIONAL CIENTIFIC-RACTICAL OURNAL OMMODITIES ND ARKETS, vol. 6, no. 2, Jan. 2009, pp. 67-74, https://journals.knute.edu.ua/commodities-and-markets/article/view/1733.