@book{32860,
	author = {Nguyen, Cam, ed.},
	title = {Subsurface Sensors and Applications},
	publisher = {SPIE},
	year = {1999},
	series = {Proceedings of SPIE; V. 3752},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/3752}
}