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 in solar UV-B over Canada, Europe and Japan JO - Atmos. Chem. Phys. J1 - ACP VL - 12 IS - 5 SP - 2469 EP - 2477 Y1 - 2012/03/05 PB - Copernicus Publications SN - 1680-7324 UR - https://acp.copernicus.org/articles/12/2469/2012/ L1 - https://acp.copernicus.org/articles/12/2469/2012/acp-12-2469-2012.pdf DO - 10.5194/acp-12-2469-2012 ER -