1. Meteorological conditions and soil climate of four cropping systems. Measurements and simulations from the project “Ecology of Arable Land”;Alvenäs;Dept of Ecology and Environmental Research, Uppsala: Swedish University of Agricultural Sciences, Report 24,1986
2. Microcomputer-controlled extractor for soil microarthropods;Andrén;Soil Biol. Biochem.,1985
3. Ecology of Arable Land—an Integrated Project;Andrén,1988
4. Soil fauna (microarthropods, enchytraeids, nematodes) in Swedish agricultural cropping systems;Andrén;Acta Agric. Scand.,1983
5. Barley straw decomposition in the field — a comparison of models;Andrén;Ecology,1987