Durability of rock bolts : Helfrich, H K World Min EquipV14, N4, April 1990, P19–22

• Book ID: 100027826
• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 120 KB
• Volume: 27
• Category: Article
• ISSN: 0148-9062
• DOI: 10.1016/0148-9062(90)91327-4