1. M. Antoine, 2001 .Ecophysiology of the cyanolichen Lobaria oregana. Thesis Oregon State University, Corvallis, Oregon, USA.
2. Contrasting Fundamental and Realized Ecological Niches with Epiphytic Lichen Transplants in an Old-Growth Pseudotsuga Forest
3. R. H. Bailey, 1976 .Ecological aspects of dispersal and establishment in lichens .Pages215 -246inD. H. Brown, D. L. Hawksworth, and R. H. Bailey, editors.Lichenology: progress and problems Academic Press, New York, New York, USA.
4. J. J. Barkman, 1958 .Phytosociology and ecology of cryptogamic epiphytes Van Gorcum, Assen, The Netherlands.
5. Intentional Systems Management