1. Mechanics of rigid lugged tractor wheels in wet soil condition;Chang,1970
2. Design of wheel parameters for puddled soil;Datta;J. Agric. Eng., ISAE,1970
3. An investigation of the driving wheel thrust of paddy field tractors;Deng,1984
4. A method for calculating the forces produced by open lugged wheels;Gee-Clough,1978
5. Pull and lift characteristics of a single lugged rigid wheel in wet rice soils;Gee-Clough;Trans. ASAE,1976