@Article{amt-3-475-2010,
AUTHOR = {Leit\~ao, J. and Richter, A. and Vrekoussis, M. and Kokhanovsky, A. and Zhang, Q. J. and Beekmann, M. and Burrows, J. P.},
TITLE = {On the improvement of NO$_{2}$ satellite retrievals – aerosol impact on the airmass factors},
JOURNAL = {Atmospheric Measurement Techniques},
VOLUME = {3},
YEAR = {2010},
NUMBER = {2},
PAGES = {475--493},
URL = {http://www.atmos-meas-tech.net/3/475/2010/},
DOI = {10.5194/amt-3-475-2010}
}