@book{33595,
	author = {Gordon, Colin, ed.},
	title = {Vibration Monitoring and Control},
	publisher = {SPIE},
	year = {1994},
	series = {Proceedings of SPIE; V. 2264},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/2264}
}