@Article{acp-12-1051-2012,
AUTHOR = {Sofieva, V. F. and Kalakoski, N. and Verronen, P. T. and P\"aiv\"arinta, S.-M. and Kyr\"ol\"a, E. and Backman, L. and Tamminen, J.},
TITLE = {Polar-night O$_{3}$, NO$_{2}$  and NO$_{3}$  distributions during sudden stratospheric warmings in 2003–2008 as seen by GOMOS/Envisat},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {12},
YEAR = {2012},
NUMBER = {2},
PAGES = {1051--1066},
URL = {http://www.atmos-chem-phys.net/12/1051/2012/},
DOI = {10.5194/acp-12-1051-2012}
}