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Simulated underground gasification of coal and electrolinking- carbonization method of preparing path in a coalbed

Technology and use of lignite proceedings : Bureau of Mines-University of North Dakota Symposium, Grand Forks, N. Dak., April 1961

Technology and use of lignite :proceedings : Bureau of Mines-University of North Dakota Symposium, Grand Forks, N. Dak., April -May 1963

Analysis of the northern Great Plains province lignites and their ash :a study of variability

Published Year

1960-1969 (4) *

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