Kras, Marta, Natalia Olędrzyńska, and Dariusz L. Szlachetko. “The Genus Bilabrella Lindl. (Orchidaceae, Habenariinae): Materials to the Taxonomic Revision”. Biodiversity: Research and Conservation 51 (September 1, 2018): 5–173. Accessed June 30, 2024. https://pressto.amu.edu.pl/index.php/biorc/article/view/biorc-2018-0011.