Лещук, Н. В., О. Й. Дидів, and О. В. Хареба. “Features of Forming a Conveyor of Commodity pro­ducts of Lettuce, Lactuca Sativa L., Varieties in the Western Forest-Steppe of Ukraine”. Plant Varieties Studying and Protection, vol. 15, no. 3, Oct. 2019, pp. 273-8, doi:10.21498/2518-1017.15.3.2019.181085.