Empirical design of pillars in gypsum mining using rock mass classification systems : Singh, R N; Eksi, M J Min Met FuelsV35, N1, Jan 1987, P16–22

• Publisher: Elsevier Science
• Year: 1988
• Tongue: English
• Weight: 138 KB
• Volume: 25
• Category: Article
• ISSN: 0148-9062
• DOI: 10.1016/0148-9062(88)92015-3