Nordin, A. (2000). Taxonomy and phylogeny of Buellia species with pluriseptate spores (Lecanorales, Ascomycotia). Acta Universitatis Upsaliensis.
Chicago-viite (17. p.)Nordin, Anders. Taxonomy and Phylogeny of Buellia Species with Pluriseptate Spores (Lecanorales, Ascomycotia). Uppsala: Acta Universitatis Upsaliensis, 2000.
MLA-viite (8. p.)Nordin, Anders. Taxonomy and Phylogeny of Buellia Species with Pluriseptate Spores (Lecanorales, Ascomycotia). Acta Universitatis Upsaliensis, 2000.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.