1. Comparison of rapid moisture meters;Klein;Aufbereitungs-Technik,1987
2. A.T. Kirchner, On-line analysis of coal; IEA Coal Research; IEACR/40 September 1991.
3. Microwave determination of moisture compared with capacitive, infrared and conductive measurement methods;Klein,1984
4. Experiences with the microwave moisture meter “Micro Moist”;Klein;Aufbereitungs-Technik,1989
5. The continuos determination of moisture on coal;Hall;Mining and Minerals Engineering,1969