@article{TUW-168576, author = {Br{\"u}ckl, Ewald and Chwatal, Werner and Mertl, Stefan and Radinger, A}, title = {Exploration Ahead of a Tunnel Face by TSWD-Tunnel Seismic White Drilling}, journal = {Geomechanics and Tunnelling}, year = {2008}, volume = {1. Jahrgang}, number = {Heft 5}, pages = {460--465}, url = {http://info.tuwien.ac.at/geophysik/bibliography/geomechanik08.pdf}, doi = {10.1002/geot.200800050} }