1. Sufficiency of atmospheric sulfur for maximum crop yield;Alway,1937
2. Quantitative chemische Analyse;Autenrith,1947
3. Turbidimetric determination of sulfate sulfur in soil extracts;Bartlett;Soil Sci.,1960
4. The yearly circulation of sulfur in nature;Eriksson;J. Geophys. Res.,1963
5. Herstellung kleiner SO2-Konzentrationen zur experimentellen Begasung biologischen Materials;Faller;Z. Pflanzenernähr., Düng., Bodenk.,1968