Template:Liede-Schumann et al., 2005
- Liede-Schumann, S., Rapini, A., Goyder, D.J. & Chase, M.W. 2005. Phylogenetics of the new world subtribes of Asclepiadeae (Apocynaceae - Asclepiadoideae): Metastelmatinae, Oxypetalinae, and Gonolobinae. Systematic Botany 30(1): 184–195. DOI: 10.1600/0363644053661832 ResearchGate