TY  - BOOK
AU  - Franciss,F. O.
TI  - WEAK ROCK TUNNELLING
SN  - 90 5410 145 8
U1  - 624.193 
PY  - 1994///
CY  - 
PB  - A.A. Balkema, Rotterdam
KW  - Tunnelling -- Mathematical Modeling
KW  - Rock-Drills
N1  - Includes Index
ER  -