1. Sulfur reduction potential of the coals of the United States;Cavallaro;Bur. Mines RI,1976
2. Plant performance and forecasting cleaning results;Geer,1968
3. A generalized distribution curve for characterizing the performance of coal cleaning equipment;Gottfried;Bur. Mines RI,1977
4. A generalization of distribution data for characterizing the performance of float-sink coal cleaning devices;Gottfried;Int. J. Min. Proc.,1978