1. A.W. Jenike, Bulletin 108: Gravity flow of bulk solids. Salt Lake City, UT, October 1961.
2. A.W. Jenike, Bulletin 123: Storage and flow of solids. Salt Lake City, UT, November 1964.
3. An investigation of the flow boundary during steady-state discharge from a funnel-flow bunker;Tüzün;Powder Technol.,1982
4. Particle segregation… and what to do about it;Johanson;Chem. Eng.,1978
5. Maintaining product uniformity and uninterrupted flow to direct-compression tableting presses;Prescott;Pharm. Technol.,1994