@book{32888,
	author = {Lupkovics, Gabor, ed.},
	title = {Symposium Optika '84},
	publisher = {SPIE},
	year = {1985},
	series = {Proceedings of SPIE; V. 0473},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/0473}
}