1. Radial airflow resistance of grain;Hukill;Agric. Engng,1955
2. Resistance of grains and seeds to airflow;Shedd;Agric. Engng,1953
3. Fluid flow through packed columns;Ergun;Chem. Engng Progr.,1952
4. A hydrodynamic analogue study of grain aeration cooling;Hohner,1964
5. 3-Dimensional analysis of air velocity and pressure in beds of grain and hay;Smith;J. agric. Engng Res.,1982