@book{30293,
	author = {DeShazer, James, ed.},
	title = {Optics in Agriculture and Forestry},
	publisher = {SPIE},
	year = {1993},
	series = {Proceedings of SPIE; V. 1836},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1836}
}