Каленська, С. М., and А. С. Риженко. “Evaluation Weather Conditions for Growing Sunflower (Helianthus Annuus L.) in the Northern Part of the Left-Bank Forest Steppe of Ukraine”. Plant Varieties Studying and Protection, vol. 16, no. 2, Aug. 2020, pp. 162-7, doi:10.21498/2518-1017.16.2.2020.209229.