Кутовенко, В. Б.; Костенко, Н. П.; Литвин, І. В. 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. PVSandP 2017, 13, 403-408.