1. Gravity flow of bulk solids;Jenike,1961
2. Storage and flow of solids;Jenike,1964
3. Stress and velocity fields in the gravity flow of bulk solids;Johanson,1962
4. Influence of surcharge pressures on arching in mass-flow hoppers;Roberts,2009
5. Review of mass-flow hopper design with respect to stress fields and surcharge loads;Roberts;Particuology,2010