@Article{acp-9-7737-2009,
AUTHOR = {Kvalevåg, M. M. and Myhre, G. and Lund Myhre, C. E.},
TITLE = {Extensive reduction of surface UV radiation since 1750 in world's populated regions},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {9},
YEAR = {2009},
NUMBER = {20},
PAGES = {7737--7751},
URL = {http://www.atmos-chem-phys.net/9/7737/2009/},
DOI = {10.5194/acp-9-7737-2009}
}