Current status of shaft construction techniques in the people's republic of china (in German and English) : Knickmeyer, W Gluckauf, V117, N7, 2 April 1981, P372–375 (English version P164–165)

• Publisher: Elsevier Science
• Year: 1981
• Tongue: English
• Weight: 114 KB
• Volume: 18
• Category: Article
• ISSN: 0148-9062
• DOI: 10.1016/0148-9062(81)91273-0