1. Off the road locomotion;Bekker,1960
2. The analytical determination of drawbar pull as a function of slip for tracked vehicles in deformable soils;Janosi,1961
3. Principles of soil-vehicle mechanics;Reece,1965
4. The measurement of soil shear strength and deformation moduli and a comparison of the actual and theoretical performance of a family of rigid tracks;Wills;J. agric. Engng Res.,1963
5. Tractor design and tractive performance;Reece,1967