1. A model of vibratory soil-cutting;Boyd;SAE Paper 670750,1967
2. Oscillation of tillage implements;Gunn;Agric. Engng.,1955
3. Theoretical analysis of vibration tillage;Smith;ASAE Paper,1971
4. The effects of mode vibration and blade angle on the performance of a simple vibratory tillage tool;Smith,1971
5. Theoretical analysis of sinusoidal vibratory soil cutting;Yow;ASAE Paper,1973