David Gutiérrez-Larruscain, Maria Santos-Vicente, Arne A. Anderberg, Enrique Rico, María Montserrat Martínez-Ortega: Phylogeny of the Inula group (Asteraceae: Inuleae): evidence from nuclear and plastid genomes and a recircumscription of Pentanema. In: Taxon, Volume 67, Issue 1, März 2018, S. 149–164. doi:10.12705/671.9