References
- M. Armstrong , “ A Geostatistical Approach to Predicting the Washability Characteristics of Coal In-Situ ”, Mathematical Geology 13 ( 4 ) 321 – 329 ( 1981 ).
- M. Armstrong , “ Using Geostatistics to Predict the Characteristics of Washed Coal The Service Variable Approach ,”. Proc. First Australian Coal Preparation Conference , Newcastle , Australia , 1981 . pp. 65 – 74 .
- M. Armstrong , “Using Geostatistics to Predict the Characteristics of Washed Coal,” Mining Engineering 36 (4) 369–373 (1984).
- Y. C. Kim , S. L. Barua and E. Y. Baafi , “ Feasibility Studies of Applying Geostatistics to Coal Washability Data ,” SME-AIME Preprint # 82 – 143 , 1982 .
- Y. C. Kim , Y. Zhao , M. Preston and F. Martino , “ Variograms of In-situ Coal Washability Data ,” SME-AIME Preprint # 88 – 193 , 1988 .
- E. H. Isaaks and R. M. Srivastava , “ Spatial Continuity Measures for Probablistic and Deterministic Geostatistics ,” Mathematical Geology 20 ( 4 ) 313 – 341 ( 1988 ).
- D. G. Krige and E. J. Magri , “ Studies on the Effect of Outliers and Data Transformation on Variogram Estimates for a Base Metal and a Gold Ore Body ,” Mathematical Geology 14 ( 6 ) 557 – 564 ( 1982 ).
- N. Cressie and D. M. Hawkins , “ Robust Estimation of the Variogram ,” Mathematical Geology 12 ( 2 ) 115 – 125 ( 1980 ).
- D. M. Hawkins , Identification of Outliers , Chapman and Hall , London , 188 pp., 1980 .