1. An Analysis of the Soil Stresses and Deformations Beneath a Rigid Wheel;Onafeko,1965
2. Soil Stresses and Deformations Beneath Rigid Wheels;Onafeko;J. Terramech.,1967
3. Soil Failure Beneath Rigid Wheels;Wong,1966
4. Calculations for the Stability of a Sand Bed by a Solution Combining the Theories of Elasticity and Plasticity;Gorbunov-Possadov,1965
5. A. D. Sela. The Shear to Normal Stress Relationship Between a Rigid Wheel and Dry Sand. Paper presented at the 1964 Annual Meeting of the A.S.A.E.