@Article{acp-4-1933-2004,
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},
VOLUME = {4},
YEAR = {2004},
NUMBER = {7},
PAGES = {1933--1943},
URL = {http://www.atmos-chem-phys.net/4/1933/2004/},
DOI = {10.5194/acp-4-1933-2004}
}