Template:Mansion, 2004
- Mansion, G. 2004. A new classification of the polyphyletic genus Centaurium Hill (Chironiinae, Gentianaceae): description of the New World endemic Zeltnera, and reinstatement of Gyrandra Griseb. and Schenkia Griseb. Taxon 53(3): 719–740. DOI: 10.2307/4135447 JSTOR PDF