Opalko, O.A., A.D. Chernenko, and A.I. Opalko. “Phylogenetic Relationships in the Representatives of Genus Malus Mill. Cultivated in Ukraine”. Plant Introduction 53 (March 1, 2012): 16-23. Accessed November 5, 2024. http://plantintroduction.org/index.php/pi/article/view/445.