1. The empirical prediction of tractor-implement field performance;Gee-Clough;J. Terramech.,1978
2. Selection of tyre sizes for agricultural vehicles;Gee-Clough;J. agric. Engng Res.,1980
3. Maximising agricultural tractor performance by matching weight, tyre size and speed to the power available;Dwyer,1978
4. Preliminary results obtained from an investigation into the rolling resistance of towed wheels;McAllister;Nat. Inst. agric. Engng Dept Note T/917/01002,1979
5. Direct indication of tractor wheel slip;Zoerb;Can. agric. Engng,1967