Coal Industry of the USA: Main Problems and Ways of Solution

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94.pdf (36.31Kb)

Дата

2017

Автор

Puchkova, Alexandra

Malashkevich, D. S.

Gubkina, V. V.

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URI

http://ir.nmu.org.ua/handle/123456789/149655

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WIDENING OUR HORIZONS : The 12 th International Forum for Students and Young Researchers, April 20-21, 2017, Volume 2 [128]