Trotsenko, V., Kabanets, V., Yatsenko, V. and KolosokІ. (2020) “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, 40(2), pp. 72-78. doi: 10.32782/agrobio.2020.2.9.