@article{1348902e6a88425a821e666619624377,
title = "Optimal Estimation for Global Ground-Level Fine Particulate Matter Concentrations",
author = "\{van Donkelaar\}, Aaron and Randall Martin and Robert Spurr and Daniel Drury and Lorraine Remer and Robert Levy and Jun Wang",
year = "2013",
doi = "10.1002/jgrd.50479",
language = "American English",
volume = "118",
pages = "5621--5636",
journal = "Journal of Geophysical Research: Atmospheres",
issn = "2169-897X",
publisher = "Wiley-Blackwell Publishing Ltd",
number = "11",
}