Kopan, Yu.G. “Biological and Morphological Features of Pollen and Seed Productivity of Some Sorts of Garden Chrysanthemum in Conditions of the Southern Coast of Crimea”. Plant Introduction 38 (June 1, 2008): 77-80. Accessed October 20, 2026. http://www.plantintroduction.org/index.php/pi/article/view/734.