@Article{acp-12-769-2012,
AUTHOR = {Mironova, I. A. and Usoskin, I. G. and Kovaltsov, G. A. and Petelina, S. V.},
TITLE = {Possible effect of extreme solar energetic particle event of 20 January 2005 on polar stratospheric aerosols: direct observational evidence},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {12},
YEAR = {2012},
NUMBER = {2},
PAGES = {769--778},
URL = {http://www.atmos-chem-phys.net/12/769/2012/},
DOI = {10.5194/acp-12-769-2012}
}