@Article{acp-3-1991-2003, AUTHOR = {Müller, M. and Neuber, R. and Fierli, F. and Hauchecorne, A. and Vömel, H. and Oltmans, S. J.}, TITLE = {Stratospheric water vapour as tracer for Vortex filamentation in the Arctic winter 2002/2003}, JOURNAL = {Atmospheric Chemistry and Physics}, VOLUME = {3}, YEAR = {2003}, NUMBER = {6}, PAGES = {1991--1997}, URL = {http://www.atmos-chem-phys.net/3/1991/2003/}, ISSN = {1680-7316} }