𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Influence of coal rib pillar width on the stability of strata around the face-end and gatehead in longwall mining : Szwilski, T B CIM Bull, V74, N830, June 1981, P65–71


Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
116 KB
Volume
19
Category
Article
ISSN
0148-9062

No coin nor oath required. For personal study only.