1. Druckverteilung und Bodenverformung unter Schlepperreifen;Söhne;Grundl. Landtechn.,1953
2. Fundamentals of pressure distribution and soil compaction under tractor tires;Söhne;Agric. Engng.,1958
3. Fundamentals of pressure distribution and soil compaction under tractor tires;Söhne;Agric. Engng.,1958
4. Soil deformation beneath surface loads;Chancellor;Trans. ASAE,1962
5. Soil deformation beneath surface loads;Chancellor;Trans. ASAE,1962