Protsenko, L., M. Liashenko, A. Vlasenko, T. Hryniuk, and O. Dobrovolny. “Investigation of Properties of Biologically Active Substances and Their Content in Cones of Ukrainian Hop Varieties”. Agricultural Science and Practice 5, no. 2 (July 15, 2018): 52-63. Accessed December 4, 2021. https://agrisp.com/index.php/agrisp/article/view/166.