@book{33666,
	author = {Pearlman, William, ed.},
	title = {Visual Communications and Image Processing IV},
	publisher = {SPIE},
	year = {1989},
	series = {Proceedings of SPIE; V. 1199},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1199}
}