Template:Downie et al., 2000
- Downie, S.R., Katz-Downie, D.S. & Spalik, K. 2000. A phylogeny of Apiaceae tribe Scandiceae: evidence from nuclear ribosomal DNA internal transcribed spacer sequences. American Journal of Botany 87(1): 76–95. DOI: 10.2307/2656687