TY - BOOK AU - Carapezza, Edward, ed. TI - Unattended Ground Sensor Technologies and Applications IV T2 - Proceedings of SPIE; V. 4743 SN - 9780819444936 (Print) PY - 2002/// CY - Washington, USA PB - SPIE UR - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/4743 ER -