1. Similitude in studies of tillage implement forces;Barnes;Agric. Eng.,1960
2. Similitude in studies of tillage implement forces;Barnes;Agric. Eng.,1960
3. Analysis of wheel performance (at zero slip rate) in Cere clay;Bunn;J. Terramechanics,1973
4. Three-dimensional interference between two tillage tools;Chisholm,1970
5. Soil bins, artificial soils, and scale model testing;Clark;Am. Soc. Agric. Eng., ASAE Paper No. 66-630,1966