1. Singh M.M. and Kendorski F.S. Strata disturbance predictions for mining beneath surface water and waste impoundments Proc. 1st Ann. Conf. Ground Control in Mining, Univ. West Virginia, July 1981
2. Singh R.N. and Atkins A.S. Design considerations for mine workings under accumulations of water Int. J. Mine Water, vol 1, no 4, Dec 1981
3. Chuen L.T. Practice and knowledge of coal mining under water bodies 10th World Mining Congress, Istanbul, 1979
4. Whittaker B.N., Singh R.N. and Neate C.J. Effect of longwall mining on ground permeability and subsurface drainage 1st Int. Mine Drainage Symp., Denver, 1979
5. National Coal Board Working under the sea NCB Mining Department Instruction PI/1968/8 (Revised 1971)