@Article{acp-5-879-2005, AUTHOR = {Romakkaniemi, S. and Kokkola, H. and Laaksonen, A.}, TITLE = {Parameterization of the nitric acid effect on CCN activation}, JOURNAL = {Atmospheric Chemistry and Physics}, VOLUME = {5}, YEAR = {2005}, NUMBER = {4}, PAGES = {879--885}, URL = {http://www.atmos-chem-phys.net/5/879/2005/}, ISSN = {1680-7316} }