@book{24236,
	author = {Andreev, A., ed.},
	title = {Coherent Phenomena and Amplification without Inversion},
	publisher = {SPIE},
	year = {1996},
	series = {Proceedings of SPIE; V. 2798},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/2798}
}