TY  - BOOK
ED  - Symposium On Rock Mechanics In The Design Of Tunnels
ED  - International Society For Rock Mechanics.
TI  - Symposium rock mechanics in the design of tunnels
AV  - TA805 S95
PY  - 0000///[Lugar de publicación no identificado
CY  - 
PB  - editor no identificado, 1983?]
KW  - Túneles
ER  -