NIEUMAN, Wiert. Cultivating Alpines at Utrecht University Botanic Garden. Sibbaldia: the International Journal of Botanic Garden Horticulture, [S. l.], n. 5, p. 63–68, 2007. DOI: 10.24823/Sibbaldia.2007.7. Disponível em: https://journals.rbge.org.uk/rbgesib/article/view/7. Acesso em: 25 apr. 2024.