Sanz, Ernesto, Noreen von Cramon Taubadel, and David L. Roberts. “Species Differentiation of Slipper Orchids Using Color Image Analysis”. Lankesteriana: International Journal on Orchidology 12, no. 3 (August 29, 2013). Accessed April 27, 2024. https://revistas.ucr.ac.cr/index.php/lankesteriana/article/view/11743.