1. Cement grinding in twin roll mill;Schonert;Zem-Kalk-Gips,1984
2. Cement data book;Duda,1985
3. Optimizing the ball grinding of cement through mill internals, ventilation, high efficiency separators;Slegten,1987
4. VDZ congress ‘85;Scheucher,1987
5. Technology for modification and optimization of ball mill in cement plant for higher output at lower cost and enhanced profitability;Shah;Cem Ind Ann Rev,1988