@Article{acpd-4-6473-2004, AUTHOR = {Stordal, F. and Myhre, G. and Arlander, W. and Svendby, T. and Stordal, E. J. G. and Rossow, W. B. and Lee, D. S.}, TITLE = {Is there a trend in cirrus cloud cover due to aircraft traffic?}, JOURNAL = {Atmospheric Chemistry and Physics Discussions}, VOLUME = {4}, YEAR = {2004}, NUMBER = {5}, PAGES = {6473--6501}, URL = {http://www.atmos-chem-phys-discuss.net/4/6473/2004/}, ISSN = {1680-7367} }