Cyclopia im Germplasm Resources Information Network (GRIN), USDA, ARS, National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland.
doi.org
James S. Boatwright, Vincent Savolainen, Ben-Erik van Wyk, Anne Lise Schutte-Vlok, Félix Forest, Michelle van der Bank: Systematic position of the anomalous genus Cadia and the phylogeny of the tribe Podalyrieae (Fabaceae). In: Systematic Botany, Volume 33, Issue 1, 2008, S. 133–147. doi:10.1600/036364408783887500
