1. Multiple seam mining a state-of-the-art review;Haycocks,1990
2. Numerical modeling of subsidence induced by underground coal mining;Coulthard,1988
3. Monitoring and prediction ground movements above underground mines in the Eastern United States;Karmis,1987
4. A study of surface subsidence behaviour arising from longwall mining of steeply pitching coal;Degirmenci,1989
5. The application of field and computer methods for pillar design in weak ground;Gale,1998