1. The lichen family Cladoniaceae in the neotropics;Ahti,1998
2. Lichenized and saprobic fungal biodiversity of a single Elaeocarpus tree in Papua New Guinea, with the report of 200 species of ascomycetes associated with one tree;Aptroot;Fungal Diversity,2001
3. Bioindikatoren;Arndt,1987
4. Lichens of Cocos nucifera on Caye Caulker, Belize;Barclay-Estrup;Lichenologist,1992