Лещук, Н.В., Рахметов, Д.Б. and Позняк, О.В. 2009. Peculiarities of Lettuce (Lactuca sativa var. angustana jrish ) introduction to the crop-ping culture in Ukraine. Plant varieties studying and protection. 1(9) (Oct. 2009), 95–102. DOI:https://doi.org/10.21498/2518-1017.1(9).2009.66358.