TY  - BOOK
AU  - Persson,P.A.
AU  - R. L. Schmidt
TI  - Mechanical boring or drill and blast tunneling (MB or DB? Workshop): first US-Swedesh underground workshop, Stockholm, December 5-10, 1976
SN  - 91-540-2675-X
AV  - TF230.M34 
PY  - 1977///
CY  - Stockholm
PB  - Swedish Detonic Research Foundation
KW  - Tunneling
KW  - Congresses
KW  - Tunnels
KW  - Boring
ER  -