TY - JOUR A1 - Zerefos, C. S. A1 - Tourpali, K. A1 - Eleftheratos, K. A1 - Kazadzis, S. A1 - Meleti, C. A1 - Feister, U. A1 - Koskela, T. A1 - Heikkilä, A. T1 - Evidence of a possible turning point of UVB increase over Canada, Europe and Japan JO - Atmos. Chem. Phys. Discuss. J1 - ACPD VL - 11 IS - 10 SP - 28545 EP - 28561 Y1 - 2011/10/24 PB - Copernicus Publications SN - 1680-7375 UR - http://www.atmos-chem-phys-discuss.net/11/28545/2011/ L1 - http://www.atmos-chem-phys-discuss.net/11/28545/2011/acpd-11-28545-2011.pdf DO - 10.5194/acpd-11-28545-2011 ER -