TY  - CONF
AU  - Hill, David
C2  - Proc., 4th Tunnel Detection Symp. on Subsurface Exploration Technology, Golden, CO
DA  - 1993-04-01
LA  - en
PB  - Proc., 4th Tunnel Detection Symp. on Subsurface Exploration Technology, Golden, CO
PY  - 1993
TI  - Gradiometer Antennas for Tunnel Detection
ER  -