30.
Gueidan, C., Savić, S., Thüs, H., Roux, C., Keller, C., Tibell, L., Prieto, M., Heiðmarsson, S., Breuss, O., Orange, A., Fröberg, L., Wynns, A. A., Navarro-Rosinés, P., Krzewicka, B., Pykälä, J., Grube, M. & Lutzoni, F. 2009. Generic classification of the Verrucariaceae (Ascomycota) based on molecular and morphological evidence: recent progress and remaining challenges. Taxon 58: 184–208.