1. Tracked vehicles — an analysis of the factors involved in steering;Steeds;Automobile Engineer,1950
2. High speed tractor steering transmissions;Christenson,1960
3. Practical analysis of tracked vehicle steering depending on longitudinal track slippage;Hayashi,1975
4. Skid steering of crawlers;Crosheck;SAE Paper No. 750552,1975
5. Prediction of wheel and track performance;Wismer,1971