1. Sulphur pollution;Overrein,1972
2. The pH and base saturation of the podzol profile;Mattson,1935
3. The chemical characteristics of soil profiles: II. The mutual interactions of podzolic materials;Mattson;Ann. Agric. Coll. Swed.,1935
4. The laws of soil colloidal behavior: XXI. The amphoteric points, the pH, and the Donnan equilibrium;Mattson;Soil Sci.,1940
5. A study of the sulfur budget for the atmosphere over northern Europe;Rodhe,1972