Petrographic characterization of Kentucky coal. Final report. Part III. Petrographic characterization of the Upper Elkhorn No. 2 coal zone of eastern Kentucky
1981 ◽
2021 ◽
Vol 263
(3)
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pp. 3663-3674
Keyword(s):
2000 ◽
Vol 5
(3)
◽
pp. 327-331
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