@Article{acpd-4-2301-2004, AUTHOR = {Cordova, A. M. and Longo, K. and Freitas, S. and Gatti, L. V. and Artaxo, P. and Procópio, A. and Silva Dias, M. A. F. and Freitas, E. D.}, TITLE = {Nitrogen oxides measurements in an Amazon site and enhancements associated with a cold front}, JOURNAL = {Atmospheric Chemistry and Physics Discussions}, VOLUME = {4}, YEAR = {2004}, NUMBER = {3}, PAGES = {2301--2331}, URL = {http://www.atmos-chem-phys-discuss.net/4/2301/2004/}, ISSN = {1680-7367} }