Kandyba, N., and L. Kryvosheeva. “Evaluation of Fiber-Flaх Varieties for Resistance to Lodging in the Early Stages of Ontogenesis”. Bulletin of Sumy National Agrarian University. The Series: Agronomy and Biology, Vol. 42, no. 4, Dec. 2020, pp. 3-8, doi:10.32782/agrobio.2020.4.1.