BILETSKY Е., and TOLCHINSKY Ю. “odeling of heological roperties of iscoplastic aterials in ood echnologies”. "INTERNATIONAL·SCIENTIFIC-·PRACTICAL·JOURNAL·COMMODITIES·AND·MARKETS", vol. 10, no. 2, Jan. 2011, pp. 68-76, https://journals.knute.edu.ua/commodities-and-markets/article/view/1579.