𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Experience with rib pillar extraction in South African collieries : Beukes, J S Proc 1st Regional Conference for Africa, Rock Mechanics in Africa, Swaziland, 3–4 November 1988P87–99. Publ Marshalltown: SANGORM, 1988


Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
119 KB
Volume
26
Category
Article
ISSN
0148-9062

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