1. Ahlgrimm, H, J, Der Einfluss physiologischer und morphologischer Factototurn auf die Festigkeit von Pflanzenhalmen am Beispiel von Wiesenlieschrgas [Effect of physiological and morphological factors on the strength of plant stems, especially timothy.], 1977
2. Mechanical properties of maize stalk as related to harvesting;Prasad;Journal of Agricultural Engineering Research,1975
3. Effect of knife angles and velocities on the cutting of stalks without a counter edge;Feller;Journal of Agricultural Engineering Research,1959
4. Laboratory studies of the effect of blade parameters and stem configuration on the dynamics of cutting grass;O'Dogherty;Journal of Agricultural Engineering Research,1991
5. Measurement of shearing energy;Liljedhal;Agricultural Engineering,1961