TWO-PHASE PARALLEL CUT WITH MILLISECOND INITIATION OF GROUP OF SNUBBING HOLES von JEDRUSIAK RYSZARD, MALACZYNSKI KRZYSZTOF, DULKO TADEUSZ, PODCHUL WITOLD

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METHOD FOR OPEN-END MINING OF LOW-DEPTH COVERS von JEDRUSIAK RYSZARD, KLECZEK ZBIGNIEW, MATUSZ CZESLAW, KOSIOR ALEKSANDER, BUTRA JAN, KOBZINSKI JAN

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METHOD OF UNDERGROUND MINING OF LOW THICKNESS ORE USING THE CHAMBER AND PILLAR SYSTEM von JEDRUSIAK RYSZARD, IWULSKI ZDZISLAW, DEBKOWSKI RAFAL, SADECKI ZBIGNIEW, BRYJA ZBIGNIEW, NOLKA ZBIGNIEW, KOSIOR ALEKSANDER, BUTRA JAN, CIESZKOWSKI HENRYK

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METHOD OF MINING OF LOW SEAM THICKNESS DEPOSITS von JEDRUSIAK RYSZARD, IWULSKI ZDZISLAW, DEBKOWSKI RAFAL, SADECKI ZBIGNIEW, PYTEL WITOLD, KLECZEK ZDZISLAW, KRAJEWSKI STANISLAW, NOLKA ZBIGNIEW, BUTRA JAN, KOSIOR ALEKSANDER, CIESZKOWSKI HENRYK, HOROSZCZAK LUBOMIR

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Rock mining method in particular for winning mineral raw materials von MICHALEWICZ PIOTR, JEDRUSIAK RYSZARD, WAIS ANDRZEJ, BRUDECKI BOGDAN, BRODA ANDRZEJ, MARKOWSKI PAWEL, NOLKA ZBIGNIEW, BEDNARKIEWICZ JOZEF

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Method of mining of low seam thickness deposits von JEDRUSIAK RYSZARD, IWULSKI ZDZISLAW, DEBKOWSKI RAFAL, SADECKI ZBIGNIEW, PYTEL WITOLD, KLECZEK ZDZISLAW, KRAJEWSKI STANISLAW, NOLKA ZBIGNIEW, BUTRA JAN, KOSIOR ALEKSANDER, CIESZKOWSKI HENRYK, HOROSZCZAK LUBOMIR

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