1. The Lichens;Ahmadjian,1973
2. Multivariate correlation of deposition data of 8 different air pollutants to lichen data in a small town in Switzerland;Ammann,1987
3. Mapping lichen diversity as an indicator of environmental quality;Asta,2002
4. Zonation of trace metals accumulation in three species of epiphytic lichens belonging to the genus Parmelia;Bargagli;Cryptogamie. Bryologie, Lichenologie,1987
5. Phytosociology and Ecology of Cryptogamic Epiphytes;Barkman,1958