| 1 | Ignatov E.V. (2020) Dependences and Features of Displacements and For-mation of Fracture Zones of the Roof and the Edge of the Coal Seam in Interaction With the Elemental Base of Support at Pillarless Technology, Journal of Mining and Geotechnical Engineering, 4(11):4. DOI: 10.26730/2618-7434-2020-4-4-41 | MORE INFO | DOWNLOAD |
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