@article{articlec83fc146,
title   = {Characterization of the optical properties of atmospheric aerosols in Amazônia from long-term AERONET monitoring (1993-1995 and 1999-2006)},
author = {Schafer, J S and Eck, T F and Holben, B N and Artaxo Netto, Paulo Eduardo and Duarte, A F},
year = {2008},
doi = {10.1029/2007jd009319},
journal   = {Journal of Geophysical Research-Atmospheric}
}