Template:Wanntorp et al. 2006
- Wanntorp, L., Kocyan, A., van Donkelaar, R. & Renner, S.S. 2006. Towards a Monophyletic Hoya (Marsdenieae, Apocynaceae): Inferences from the Chloroplast trnL Region and the rbcL-atpB Spacer. Systematic Botany 31(3):586-596. DOI: 10.1043/05-58.1 PDF