@book{23302,
	author = {Narayanan, Balasubramanian, ed.},
	title = {Advances in Optical Metrology I},
	publisher = {SPIE},
	year = {1978},
	series = {Proceedings of SPIE; V. 0153},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/0153}
}