Template:Crespo et al., 2002
- Crespo, A., Molina, M.C., Blanco, O., Schroeter, B., Sancho, L.G. & Hawksworth, D.L. 2002. rDNA its and β-tubulin gene sequence analyses reveal two monophyletic groups within the cosmopolitan lichen Parmelia saxatilis. Mycological Research 106(7): 788–795. Online.