The evolution of thick coal seams mining methods in China.
Autor: | Rasskazov, I., Tkach, S., Jianyong, Qiao, Zhiqiang, Wang, Jingli, Zhao |
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Zdroj: | E3S Web of Conferences; 9/30/2020, Vol. 192, p1-10, 10p |
Databáze: | Complementary Index |
Externí odkaz: |