1. Rate of discharge of dry sands from hoppers under the presence of back pressure of air;Aoki;Kagaku Kogaku,1961
2. Pressure and additive effects on flow of bulk solids;Bulsara;Ind. Eng. Chem. Process Design Develop.,1964
3. The influence of an air-pressure difference on the gravity flow of particulate solids through orifice;McDougall;Trans. Inst. Chem. Engrs.,1966
4. Vertical air-controlled particle flew from a bunker through circular orifice;de Jong;Powder Technol.,196970