Morris, Mercy, John David, Tim Upson, and Mike Buffin. “Prioritisation for the Conservation of Cultivated Plants: A New Approach”. Sibbaldia: the International Journal of Botanic Garden Horticulture, no. 8 (November 13, 2010): 111–123. Accessed April 20, 2024. https://journals.rbge.org.uk/rbgesib/article/view/140.