Template:Mathews et al., 2009
- Mathews, K.G., Dunne, N., York, E. & Struwe, L. 2009. A phylogenetic analysis and taxonomic revision of Bartonia (Gentianaceae: Gentianeae), based on molecular and morphological evidence. Systematic Botany 34(1): 162-172. DOI: 10.1600/036364409787602320 Full text PDF