1. Population dynamics and biology of Collembola on Truelove Lowland;Addison,1977
2. Relationships between weights, volumes and numbers of soil animals;Edwards,1967
3. organization and dynamics of Collembola populations on Hardangervidda;Fjellberg,1975
4. Microarthropods from Danish soils; ecology and phenology;Haarløv;Oikos. Suppl,1960
5. Observations on the breeding biology of Collembola (II);Hale;Pedobiologia,1965