Template:Rumsey et al., 2004
- Rumsey, F.J., Russell, S., Schaefer, H. & Rasbach, H. 2004. Distribution, Ecology and Cytology of Asplenium azoricum Lovis, Rasbach & Reichstein (Aspleniaceae, Pteridophyta) and its Hybrids. American Fern Journal 94(3): 113–125. DOI: 10.1640/0002-8444(2004)094[0113:DEACOA]2.0.CO;2 BHL