The design and support of underground excavations in deep-level, hard-rock mines. Thesis : Figs, tabls, refs. PH.D. THESIS, UNIV. WITWATERSRAND, 1971

✍ Scribed by J.W. Wilson

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 121 KB
• Volume: 12
• Category: Article
• ISSN: 0148-9062
• DOI: 10.1016/0148-9062(75)90448-9