@book{25472,
	author = {Martins Costa, Manuel Filipe, ed.},
	title = {Fourth International Conference on Applications of Optics and Photonics},
	publisher = {SPIE},
	year = {2019},
	series = {Proceedings of SPIE; V. 11207},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11207}
}