@Article{acpd-4-6837-2004, AUTHOR = {Müller, M. and Neuber, R. and Massoli, P. and Cairo, F. and Adriani, A. and Moriconi, M. L. and Di Donfrancesco, G.}, TITLE = {Differences in Arctic and Antarctic PSC occurrence as observed by lidar in Ny-Ålesund (79° N, 12° E) and McMurdo (78° S, 167° E)}, JOURNAL = {Atmospheric Chemistry and Physics Discussions}, VOLUME = {4}, YEAR = {2004}, NUMBER = {5}, PAGES = {6837--6866}, URL = {http://www.atmos-chem-phys-discuss.net/4/6837/2004/}, ISSN = {1680-7367} }