@book{31318,
	author = {Vukobratovich, Daniel, ed.},
	title = {Precision Engineering and Optomechanics},
	publisher = {SPIE},
	year = {1989},
	series = {Proceedings of SPIE; V. 1167},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1167}
}