@book{25644,
	author = {Gong, Jianya, ed.},
	title = {Geoinformatics 2006: Geospatial Information Science},
	publisher = {SPIE},
	year = {2006},
	series = {Proceedings of SPIE; V. 6420},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/6420}
}