BioStor
 | Subfamilial and Tribal Relationships in the Rubiaceae Based on rbcL Sequence Data Birgitta Bremer, Katarina Andreasen and Daniel Olsson (1995) Annals of the Missouri Botanical Garden 82: 383-397 |
 | Chromosome Survey of the Rubiaceae Michael Kiehn (1995) Annals of the Missouri Botanical Garden 82: 398-408 |
 | Phylogeny of the Rubiaceae-Rubioideae, in Particular the Tribe Rubieae: Evidence from a Non-Coding Chloroplast DNA Sequence Alessandro Natali, Jean-Francois Manen and Friedrich Ehrendorfer (1995) Annals of the Missouri Botanical Garden 82: 428-439 |