TY - JOUR A1 - Laakso, L. A1 - Petäjä, T. A1 - Lehtinen, K. E. J. A1 - Kulmala, M. A1 - Paatero, J. A1 - Hõrrak, U. A1 - Tammet, H. A1 - Joutsensaari, J. T1 - Ion production rate in a boreal forest based on ion, particle and radiation measurements JO - Atmos. Chem. Phys. Discuss. J1 - ACPD VL - 4 IS - 4 SP - 3947 EP - 3973 Y1 - 2004/07/20 PB - Copernicus Publications SN - 1680-7367 UR - http://www.atmos-chem-phys-discuss.net/4/3947/2004/ L1 - http://www.atmos-chem-phys-discuss.net/4/3947/2004/acpd-4-3947-2004.pdf ER -