Goncharenko, B.V. “The Decorative-Deciduous Species and Cultivars of Forsythia Vahl Genus in Arboretum of M.M. Gryshko National Botanical Garden of the NAS of Ukraine”. Plant Introduction 61 (May 1, 2014): 79-83. Accessed November 12, 2024. http://plantintroduction.org/index.php/pi/article/view/268.