1. Beitrage zur Systematik und geogra-phischen Verbreitung der Eisenbakterien;Beger;Berichte der Deutshchen botanischen Gesellschaft,1949
2. Amorphous ferrous sulphide as a reducing agent for culture of anaerobes;Brock;Applied and Environmental Microbiology,1977
3. Planktonic bacteria;Collins;Journal of General Microbiology,1957
4. Seasonal transformations and movements of iron in a productive English lake with deep-water anoxia;Davison;Schweizerische Zeitschrift fur Hydrologie,1981