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. J1 - ACP VL - 4 IS - 7 SP - 1933 EP - 1943 Y1 - 2004/09/29 PB - Copernicus Publications SN - 1680-7324 UR - http://www.atmos-chem-phys.net/4/1933/2004/ L1 - http://www.atmos-chem-phys.net/4/1933/2004/acp-4-1933-2004.pdf DO - 10.5194/acp-4-1933-2004 ER -