1. Bates, J., Farmer, A., 1992. Bryophytes and Lichens in a Changing Environment. Clarendon Press, Oxford.
2. Quantitative analysis of the diaspore bank of bryophytes and ferns in cultivated fields in Switzerland;Bisang;Lindbergia,1996
3. Studies on the status of rare and endangered bryophytes in Switzerland;Bisang;Biol. Conserv.,1994
4. Catizzone, M., Larsson, T., Svensson, L., 1998. Understanding Biodiversity. Ecosystems Research Report No. 25. DG XII, Brussels.
5. Diversity and abundance of bryophytes, lichens, and fungi in relation to wood substrate and successional stage in aspen mixedwood boreal forests;Crites;Can. J. Bot.,1998