TY  - BOOK
AU  - Maidl, Bernhard
TI  - Hardrock tunnel boring machines
SN  - 9783433016763
U1  - 624.1930284 22
PY  - 2008///
CY  - Berlin
PB  - Ernst & Sohn
KW  - Tunneling
KW  - Equipment and supplies
KW  - Drilling and boring machinery
N1  - Includes bibliographical references and index
ER  -