VOLK, Sigrid. Faszination Orchideen. Der Palmengarten, [S. l.], v. 86, n. 1, p. 8–11, 2023. DOI: 10.21248/palmengarten.2570. Disponível em: https://ojs.ub.uni-frankfurt.de/Palmengarten/index.php/Palmengarten/article/view/2570. Acesso em: 11 mai. 2024.