@Article{acpd-2-623-2002, AUTHOR = {Tuinder, O. N. E. and de Winter-Sorkina, R. and Builtjes, P. J. H.}, TITLE = {Retrieval methods of effective cloud cover for the GOME instrument: an intercomparison}, JOURNAL = {Atmospheric Chemistry and Physics Discussions}, VOLUME = {2}, YEAR = {2002}, NUMBER = {3}, PAGES = {623--668}, URL = {http://www.atmos-chem-phys-discuss.net/2/623/2002/}, ISSN = {1680-7367} }