00517naa#a2200181#i#4500001001500000005001700015011001400032100004100046101000800087102000700095200004200102210009900144215001000243608002700253700001700280700001700297856002100314EN\\bibl\6606220240708144024.1##a2074-1618##a20130625b2013####ek#y0engy0150####ca0#aRUS##aRU1#aTHE ORIGIN OF MININGeJournal article1#aSaint-PetersburgcSaint-Petersburg University of State Fire Service of Emercom of Russiad2013##a3 с.##aJournal article2local#1aLugovoygA A#1aShablovgN N4#ajournals.igps.ru