1. Specification of attachment of mounted implements to agricultural wheeled tractors;British Standards Institution;BS,1973
2. A three-point linkage dynamometer for restrained linkages;Scholtz;Journal of Agricultural Engineering Research,1966
3. Linkage load and accelerometer measurements for a tractor and plough travelling along a farm roadway under three different conditions of tyre pressure and implement mass;Collins,1988
4. An instrument for measuring the power transmitted between the tractor pto and the agricultural machine;Bahasvean;Journal of Agricultural Engineering,1963
5. True ground speed measuring techniques;Richardson;SAE Paper 821058,1982