TY  - BOOK
AU  - Koppenjan, Steven, ed.
TI  - Ninth International Conference on Ground Penetrating Radar
T2  - Proceedings of SPIE; V. 4758
SN  - 9780819445223 (Print)
PY  - 2002///
CY  - Washington, USA
PB  - SPIE
UR  - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/4758
ER  -