KIEHN, Michael. Arbeitstagung des BGCI/IABG EU Botanic Gardens Consortium, Wien 26.-28.11.1999. Der Palmengarten, [S. l.], v. 63, n. 2, p. 162–163, 1999. Disponível em: https://ojs.ub.uni-frankfurt.de/Palmengarten/index.php/Palmengarten/article/view/1125. Acesso em: 20 mai. 2024.