The composition and optical absorption coefficient of atmospheric particulate matter. Lindberg, J. D. Optical and Quantum Electronics, 7(3):131--139, 1975.
The composition and optical absorption coefficient of atmospheric particulate matter [link]Paper  bibtex   
@article{lindberg_composition_1975,
	title = {The composition and optical absorption coefficient of atmospheric particulate matter},
	volume = {7},
	url = {http://link.springer.com/article/10.1007/BF00619587},
	number = {3},
	urldate = {2015-04-26},
	journal = {Optical and Quantum Electronics},
	author = {Lindberg, J. D.},
	year = {1975},
	pages = {131--139}
}

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