Experience with shaft boring and new developments in German coal mines : Proc Rapid Excavation and Tunnelling Conference, Las Vegas, 14–17 June 1976, P126–147

✍ Scribed by K.H. Bruemmer; K. Wollers

• Publisher: Elsevier Science
• Year: 1978
• Tongue: English
• Weight: 115 KB
• Volume: 15
• Category: Article
• ISSN: 0148-9062
• DOI: 10.1016/0148-9062(78)91739-4