@Article{acp-6-3563-2006,
AUTHOR = {Hoffer, A. and Gelencs\'er, A. and Guyon, P. and Kiss, G. and Schmid, O. and Frank, G. P. and Artaxo, P. and Andreae, M. O.},
TITLE = {Optical properties of humic-like substances (HULIS) in  biomass-burning aerosols},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {6},
YEAR = {2006},
NUMBER = {11},
PAGES = {3563--3570},
URL = {http://www.atmos-chem-phys.net/6/3563/2006/},
DOI = {10.5194/acp-6-3563-2006}
}