1. Energy requirements for cutting forages;Chancellor;Agricultural Engineering,1958
2. Cutting of biological material;Chancellor,1988
3. Der freie Schnitt beim Mohen von Halmgu [Impact cutting in mowing forage crops];Dobler,1972
4. Principles of Farm Machinery;Kepner,1987
5. Impact cutting behaviour of forage crops: I. Mathematical models and laboratory tests;McRandal;Journal of Agricultural Engineering Research,1978