Template:Fader et al., 2016
- Fader, A.A.C., Salas, R.M., Dessein, S. & Cabral, E.L., 2016. Synopsis of Hexasepalum (Rubiaceae), the priority name for Diodella and a new species from Brazil. Systematic Botany 41(2): 408–422. DOI: 10.1600/036364416X691803 PDF from ResearchGate