@Article{acpd-4-3947-2004,
AUTHOR = {Laakso, L. and Pet\"aj\"a, T. and Lehtinen, K. E. J. and Kulmala, M. and Paatero, J. and H\~orrak, U. and Tammet, H. and Joutsensaari, J.},
TITLE = {Ion production rate in a boreal forest based on ion, particle and radiation measurements},
JOURNAL = {Atmospheric Chemistry and Physics Discussions},
VOLUME = {4},
YEAR = {2004},
NUMBER = {4},
PAGES = {3947--3973},
URL = {http://www.atmos-chem-phys-discuss.net/4/3947/2004/},
DOI = {10.5194/acpd-4-3947-2004}
}