1. Ideal nutrient productivities and nutrient proportions in plant growth;Agren;Plant, Cell and Environment,1988
2. Decomposition of shoot and root litter of barley, lucerne and meadow fescue under field conditions;Andren;Swedish Journal of Agricultural Research,1987
3. Organic carbon and nitrogen flows;Andren,1989
4. Barley straw decomposition in the field: a comparison of models;Andren;Ecology,1987
5. Spatial variation of soil physical and chemical properties in an arable field with high clay content;Andren;Swedish University of Agricultural Sciences, Department of Ecology and Environmental Research, Report 40,1990