Template:Villarreal, Hässel & Salazar Allen, 2007
- Villarreal A., J.C., Hässel de Menéndez, G.G. & Salazar Allen, N. 2007. Nothoceros superbus (Dendrocerotaceae), a new hornwort from Costa Rica. The Bryologist 110: 279–285. DOI: 10.1639/0007-2745(2007)110[279:NSDANH]2.0.CO;2, ResearchGate