1. Experimentelle Untersuchungen zur Frage der Ausfällung des Eisens in Podzölboden;Aarnio;Int. Mitt. Bodenk.,1913
2. Experiments on the mechanism of gley formation;Bloomfield;J. SoilSci.,1951
3. The movement and precipitation of iron oxides in podzol soils;Deb;J. Soil Sci.,1949
4. The solubility of soil constituents in oxalic acid as an index to the effects of weathering;Gallagher;Proc. Roy. Irish Acad.,1943