@book{32354,
	author = {Cheung, C. F., ed.},
	title = {Sixth Asia Pacific Conference on Optics Manufacture},
	publisher = {SPIE},
	year = {2020},
	series = {Proceedings of SPIE; V. 11383},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11383}
}