@book{33132,
	author = {Kingsley, Stuart, ed.},
	title = {The Search for Extraterrestrial Intelligence (SETI) in the Optical Spectrum},
	publisher = {SPIE},
	year = {1993},
	series = {Proceedings of SPIE; V. 1867},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1867}
}