1. Storage and flow of solids, Bull. 123, Eng. Expt. Sta., Univ. of Utah, 1964; also: Gravity flow of solids;Jenike;Trans. Inst. Chem. Engrs.,1962
2. Method of calculating rate of discharge from hoppers and bins;Johanson;Trans. AIME,1965
3. Flow of granular solids through orifices;Fowler;Chem. Eng. Sci.,1959
4. Rate of discharge of granular materials from bins and hoppers;Rose;Engineer,1959