1. Soil mechanics for off-road vehicles;Karafiath,1975
2. Compaction of soil by agricultural equipment;Chancellor,1976
3. Pressure distribution between a smooth tyre and the soil;Vandenberg;Trans. ASAE,1962
4. Stress distribution in soils under tractor loads;Reaves;Agric. Engng, St Joseph, Mich.,1960
5. Investigations of pressures and deflections for flexible pavements;Waterways Experiment Station;Tech. Memo 3-323,1954