@book{33207,
	author = {Tschudi, Theo, ed.},
	title = {Thin Films in Optics},
	publisher = {SPIE},
	year = {1990},
	series = {Proceedings of SPIE; V. 1125},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1125}
}