@article {3991, title = { Notes on the systematics, chemistry and distribution of European Parmelia and Punctelia species (lichenized ascomycetes)}, journal = {Sauteria}, volume = {15}, year = {2008}, pages = {545-559}, url = {www.zobodat.at/pdf/Sauteria_15_0545-0559.pdf}, author = {Thell, A. and Elix, J.A. and Feuerer, T. and Hansen, E.S. and K{\"a}rnefelt, I. and Sch{\"u}ler, N. and Westberg, M.} }