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keyword: powered roof support – 4 free books.
These books are included in the Directory of Open Access Books. This means that they have been peer-reviewed and are of interest to scholars.
Mining Technologies Innovative Development II
Sergey Zhironkin and Dawid Szurgacz, editors
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Modelling and Calculation of Raw Material Industry
Krzysztof Czajka et al. (editors)
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Mining Technologies Innovative Development
Sergey Zhironkin and Dawid Szurgacz, editors
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Green Economy and Sustainable Development
Sergey Zhironkin and Michal Cehlar, editors
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