@Article{acp-8-3583-2008,
AUTHOR = {Hess, M. and Koepke, P.},
TITLE = {Modelling UV irradiances on arbitrarily oriented surfaces: effects of sky obstructions},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {8},
YEAR = {2008},
NUMBER = {13},
PAGES = {3583--3591},
URL = {http://www.atmos-chem-phys.net/8/3583/2008/},
ISSN = {1680-7316}
}