Trotsenko, V., V. Kabanets, V. Yatsenko, and KolosokІ. “Models of Sunflower Productivity Formation and Their Efficiency in the Conditions of the North-Eastern Forest-Steppe of Ukraine”. Bulletin of Sumy National Agrarian University. The Series: Agronomy and Biology, Vol. 40, no. 2, Oct. 2020, pp. 72-78, doi:10.32782/agrobio.2020.2.9.