METHOD OF UNATTENDED MINING OF STEEP COAL BEDS
DOKUKIN ALEKSANDR V,SU, SUSLOV SERGEJ N,SU, KRASNOKUTSKIJ ALEKSANDR T,SU, KHOMYLOV GENNADIJ S,SU, REPETSKIJ VASILIJ V,SU, MYSIN ANATOLIJ V,SU
Year of Publication 07.05.1983
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Year of Publication 07.05.1983
Patent