TY  - BOOK
AU  - Brown, E.T..
TI  - Design and Performance Of Underground Excavations / 
SN  - 0-7277-0211-4
U1  - HZ:11p56117`N84 
PY  - 1977///
CY  - London EC1P 1JH : 
PB  - British Geotechnical Society , 
ER  -