1. Tractor performance spreadsheet for radial tires;Al-Hamed;Comput. Electron. Agric.,1994
2. ASAE Standards, 2000. ASAE D497.4 Agricultural machinery management data. ASAE, St. Joseph, MI.
3. Brixius, W.W., 1987. Traction prediction equations for bias ply tires. ASAE Paper 87-1622, 8 pp.
4. Clark, R.L., 1985. Tractive modeling with the modified Wismer-Luth model. ASAE Paper 85-1049.
5. Evans, M.D., Clark, R.L,. Manor, G., 1989. A traction prediction and ballast selection model. ASAE Paper 89-1054, 14 pp.