@Article{acp-7-201-2007,
AUTHOR = {Hirsikko, A. and Bergman, T. and Laakso, L. and Dal Maso, M. and Riipinen, I. and H\~orrak, U. and Kulmala, M.},
TITLE = {Identification and classification of the formation of intermediate ions measured in boreal forest},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {7},
YEAR = {2007},
NUMBER = {1},
PAGES = {201--210},
URL = {http://www.atmos-chem-phys.net/7/201/2007/},
DOI = {10.5194/acp-7-201-2007}
}