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| 2 | Varfolomeev E.L., Borisov I.L. Technology of extraction of thick seam by system of parallel, six-meter width boards for each layer with pillars extraction. Vestnik Kuzbasskogo gosudarstvennogo tekhnicheskogo universiteta=Bulletin of the Kuzbass State Technical University. 2014; 5(105):40-43. (In Russ., abstract in Eng.). | MORE INFO | DOWNLOAD |
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