Cost efficiency comparison between shotfired and mechanised drivages (In German and English) : Wild, H W GluckaufV122, N5, 6 March 1986, P353–359 (german), P122–148 (english)

• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 98 KB
• Volume: 23
• Category: Article
• ISSN: 0148-9062
• DOI: 10.1016/0148-9062(86)90321-9