1. Arnold, P. C., and Roberts, A. W., 1969. Fundamental aspects of load-deformation behavior of wheat grain. Transactions of the American Society of Agricultural Engineers, 12, 104–108.
2. Arnold, R. E., Caldwell, F., and Davies, A. C., 1958. The effect of moisture content of the grain and the drum setting of the combine harvester on the quality of oats. Journal of Agricultural Engineering Research, 3, 336–345.
3. Debrand, M., 1980. A quel moment recolter les graminees porte-graine? Bulletin de la Federation Nationale des Agriculteurs Multiplicateurs de Semences (France), 18, 9–15.
4. Dobrzański, B., and Szot, B., 1997. Mechanical properties of pea seed coat. International Agrophysics, 11, 301–306.
5. Hill, L. D., 1975. Corn quality as influenced by harvest and drying conditions. Cereal Foods Word, 20, 333–335.