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Information × Registration Number 0308U001952, 0106U012633 , R & D reports Title Extraction of coal deposits on the closed mines and mines with small remaining deposits popup.stage_title Вилучення запасів вугілля на шахтах, що закриваються, і шахтах з малими залишковими запасами Head Pavel Ponomarenko, Registration Date 14-04-2008 Organization National Mining University popup.description2 Theoretical and practical approaches to closing of coal mines are considered. The criterion of economic efficiency of remaining stores' extraction is grounded. The economical mathematical model of economic expediency of coal stores' extraction on mines with small remaining stores is described. The economic criterion of mines closure is determined.5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close