共 6 条
- [2] Gas from tight sands, shales a growing share of US supply Oil and Gas Journal, 2003, 101 (47): : 34 - 43
- [5] Test of the retractable guidance system installed on the level 960 m in the Leon IV shaft in Rydultowy Coal Mine, Poland INNOVATIVE MINING TECHNOLOGIES SCIENTIFIC AND TECHNICAL CONFERENCE (IMTECH 2020), 2021, 1134