@book{25861,
	author = {Quenzer, A., ed.},
	title = {High Power CO2 Laser Systems and Applications},
	publisher = {SPIE},
	year = {1989},
	series = {Proceedings of SPIE; V. 1020},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1020}
}