1. Reed canary grass compared with some other species;Aase;Forsk. Fors. Landbruket,1977
2. Oil content of soybean plant as influenced by soil bulk density and moisture interactions;Ahmed;Bangladesh J. Soil Sci.,1973
3. Total porosity and random roughness of the interrow zone as influenced by tillage;Allmaras;U.S. Dep. Agric., Agric. Res. Serv. Conserv. Res. Rep.,1966
4. Economic aspects of soil compaction;Andersson,1986
5. Structure dynamics in the topsoil. A field study;Andersson;Grundfoerbaettring,1966