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Head: Mineev S.P.. To undertake a study of sources of metane relasse, work out recommending of relatively safe exploitation a south vent highway of Sq. of l8 mountains. 550 m., dukeway №3 Sq.s of l8 mountains. 550 m., that get some fresh air not separately. (popup.stage: ). The Polyacov Institute of Geotechnical mechanics of NAS of Ukraine. № 0216U006687
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Updated: 2026-03-24
