Ossenbach, Carlos. “Orchids in the Era of Grigory Von Langsdorff: Two Golden Decades in the History of the Botanical Exploration of Brazil (1813–1830)”. Lankesteriana: International Journal on Orchidology 18, no. 2 (July 27, 2018). Accessed November 25, 2024. https://revistas.ucr.ac.cr/index.php/lankesteriana/article/view/34106.