Sobko, V.G., M.B. Gaponenko, and O.V. Reshetjuk. “Taxonomic Structure of the Family Orchidaceae Juss. In Flora of Ukraine”. Plant Introduction 21 (March 1, 2004): 65-68. Accessed October 18, 2026. http://www.plantintroduction.org/index.php/pi/article/view/1058.