@book{31756,
	author = {Schäfer, Klaus, ed.},
	title = {Remote Sensing of Clouds and the Atmosphere VII},
	publisher = {SPIE},
	year = {2003},
	series = {Proceedings of SPIE; V. 4882},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/4882}
}