@Article{acp-6-3443-2006, AUTHOR = {Schmid, O. and Artaxo, P. and Arnott, W. P. and Chand, D. and Gatti, L. V. and Frank, G. P. and Hoffer, A. and Schnaiter, M. and Andreae, M. O.}, TITLE = {Spectral light absorption by ambient aerosols influenced by biomass burning in the Amazon Basin. I: Comparison and field calibration of absorption measurement techniques}, JOURNAL = {Atmospheric Chemistry and Physics}, VOLUME = {6}, YEAR = {2006}, NUMBER = {11}, PAGES = {3443--3462}, URL = {http://www.atmos-chem-phys.net/6/3443/2006/}, DOI = {10.5194/acp-6-3443-2006} }