@book{23405,
	author = {Otto, Robert, ed.},
	title = {Air Traffic Control Technologies},
	publisher = {SPIE},
	year = {1995},
	series = {Proceedings of SPIE; V. 2464},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/2464}
}