@book{30290,
	author = {Bernal, Enrique, ed.},
	title = {Optics in Adverse Environments I},
	publisher = {SPIE},
	year = {1978},
	series = {Proceedings of SPIE; V. 0121},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/0121}
}