@book{25646,
	author = {Li, Deren, ed.},
	title = {Geoinformatics 2006: GNSS and Integrated Geospatial Applications},
	publisher = {SPIE},
	year = {2006},
	series = {Proceedings of SPIE; V. 6418},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/6418}
}