@book{31747,
	author = {Ehlers, Manfred, ed.},
	title = {Remote Sensing for Environmental Monitoring, GIS Applications, and Geology VII},
	publisher = {SPIE},
	year = {2007},
	series = {Proceedings of SPIE; V. 6749},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/6749}
}