Caved-debris roof stability in working lower layers of a thick seam with caving (in Polish) : Kidybinski, A Przegl Gorn, V34, N9, Sept 1978, P363–368

• Publisher: Elsevier Science
• Year: 1979
• Tongue: English
• Weight: 113 KB
• Volume: 16
• Category: Article
• ISSN: 0148-9062
• DOI: 10.1016/0148-9062(79)91343-3