1. Postburn study results for Hanna II Phases II and III underground coal gasification experiment;Youngberg,1981
2. Examination of UCG cavities for the large block test, Centralia, Washington;Ramirez,1982
3. The effect of thermal and structural properties on the growth of an underground coal gasification cavity;Glass,1983
4. Subsidence prediction for the forthcoming TONO project;Sutherland,1983
5. Stress mediated response associated with UCG cavity and subsidence prediction modeling;Advani,1983