1. Tractive characteristics of radial-ply tyres;Forrest;Trans. am. Soc. agric. Engrs,1962
2. Operating characteristics of radial-ply tractor tires;Thaden;Trans. Am. Soc. agric. Engrs,1962
3. A discussion of performance characteristics of radial-ply tractor tires;Worthington;Trans. Am. Soc. agric. Engrs,1962
4. Tractive performance of radial-ply and conventional tractor tires;Vanden Berg;Trans. Am. Soc. agric. Engrs,1962
5. The effect of tread pattern on the tractive performance of tractor driving wheel tyres;Dwyer,1974