@book{33494,
	author = {Gerhart, Grant, ed.},
	title = {Unmanned Ground Vehicle Technology IV},
	publisher = {SPIE},
	year = {2002},
	series = {Proceedings of SPIE; V. 4715},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/4715}
}