METHOD FOR HYDRO-PULSE LOOSENING OF COAL SEAMS von NISKEVYCH OLEKSANDR MYKOLAIOVYCH, ANHELOVSKYI OLEKSANDR ANATOLIIOVYCH, CHUHUNKOV IHOR FEDOROVYCH, ZHULAI YURII OLEKSIIOVYCH, VASYLIEV DMYTRO LEONIDOVYCH, NYKYFOROV OLEKSII VIKTOROVYCH, KOLCHIN HENNADII IVANOVYCH, ZBEROVSKYI VASYL VLADYSLAVOVYCH

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