@book{31561,
	author = {Ahlers, Rolf-Juergen, ed.},
	title = {Rapid Prototyping and Flexible Manufacturing},
	publisher = {SPIE},
	year = {1997},
	series = {Proceedings of SPIE; V. 3102},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/3102}
}