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2. An exact method for characterization of grain shape;Ehrlich;J. Sediment. Petrol.,1970
3. Particle shape analysis — a numerical-statistical approach;Ehrlich,1980
4. Batch sieving of deep particulate beds on a vibratory sieve;Hudson;Powder Technol.,1968
5. The size separation of particles by screening;Jansen;Powder Technol.,1967