1. Der Boden als Siedlungsraum von Mikroorganismen;Beck,1968
2. The effect of soil drying on humus decomposition and nitrogen availability;Birch;Plant & Soil,1958
3. Biomass and turnover of bacteria in forest soil and a peat;Clarholm;Soil Bilogy & Biochemistry,1980
4. Microbial productivity in Soil;Gray,1971
5. A simulation model for decomposition in grasslands;Hunt;Ecology,1977