@book{31787,
	author = {Tong, Qingxi, ed.},
	title = {Remote Sensing of the Environment: 15th National Symposium on Remote Sensing of China},
	publisher = {SPIE},
	year = {2006},
	series = {Proceedings of SPIE; V. 6200},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/6200}
}