Кутовенко, В. Б., Н. П. Костенко, and І. В. Литвин. “Morphological Features and Productivity of Cutting Lettuce Varieties (<i>Lactuca sativa</i> L. Var. <i>secalina</i≫) of Dutch Breeding in the Northern Part of the Forest-Steppe Zone of Ukraine”. Plant Varieties Studying and Protection, vol. 13, no. 4, Dec. 2017, pp. 403-8, doi:10.21498/2518-1017.13.4.2017.117749.