@Article{acp-11-4521-2011,
AUTHOR = {Baumgaertner, A. J. G. and Sepp\"al\"a, A. and J\"ockel, P. and Clilverd, M. A.},
TITLE = {Geomagnetic activity related NO$_{x}$ enhancements and polar surface air temperature variability in a chemistry climate model: modulation of the NAM index},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {11},
YEAR = {2011},
NUMBER = {9},
PAGES = {4521--4531},
URL = {http://www.atmos-chem-phys.net/11/4521/2011/},
DOI = {10.5194/acp-11-4521-2011}
}