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2. Jackson E and Walton G (1983) Note on a Possible Approach to the Assessment of Surface Water in Opencast Mines in the British Isles. International Journal of Mine Water, Vol. 2, No. 1, March 1983.
3. McWhorter D B (1981) Predicting Groundwater Response to Disturbance by Mining Selected Problems. Symp. Surface Mining, Hydrology, Sedimentology and Reclamation, University of Kentucky, 1981, pp. 89–95.
4. Mansur C I and Kaufman R I (1962) Dewatering in Foundation Engineering. McGraw Hill Book Company, New York, Chapter 3.
5. National Coal Board (1982) Technical Management of Water in the Coal Mining Industry. NCB Mining Department, 1982, 129 pages.