TY  - BOOK
AU  - 
AU  - 
TI  - Practical Handbook For Underground Rock Mechanics
SN  - 0878490566
U1  - 624.131 STA 
PY  - 1986///
CY  - Clausthal-Zellerfeld
PB  - Trans Tech Publication
KW  - Rock mechanics
N1  - Includes bibliographical references ( p. 137 - 142 ), indexes ( p. 143 - 144 )
ER  -