by S. J. Leach
No reviews yet. Be the first!
The accuracy of sampling probes in very ...
Physical principles and techniques of pr...
Practical considerations in longwall fac...
Fineness of coal dust deposited on the r...
The Effects of a retreating longwall on ...
Longwall gate road stability in a steepl...
Gob and gate road reaction to longwall m...
Longwall gate road roof instability and ...