1. Flow of granular materials as a two-component system;Ackermann;Continuum Mechanical and Statistical Approaches in the Mechanics of Granular Materials,1978
2. Gravity flow of cohesionless granular materials in chutes and channels;Savage;J. Fluid mech.,1979
3. On the dynamic flow of granular media;Blinowski;Arch. Mech. Stoso.,1978
4. Mechanics Applied to the Transport of Bulk Materials,1979