Жук, О. Я. “The Morphological Signs of Plants of White Cabbage (Brassica Oleraceae L. Convar. Capitata (L.) Alef. Var. Alba DC) and Their Variability Depending on Type of Sort”. Plant varieties studying and protection, no. 2(8) (April 24, 2008): 34–39. Accessed September 27, 2022. http://journal.sops.gov.ua/article/view/62403.