TY - BOOK AU - Nguyen, Cam, ed. TI - Subsurface Sensors and Applications T2 - Proceedings of SPIE; V. 3752 SN - 9780819432384 (Print) PY - 1999/// CY - Washington, USA PB - SPIE UR - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/3752 ER -