@Article{acp-7-6075-2007,
AUTHOR = {Toohey, M. and Quine, B. M. and Strong, K. and Bernath, P. F. and Boone, C. D. and Jonsson, A. I. and McElroy, C. T. and Walker, K. A. and Wunch, D.},
TITLE = {Balloon-borne radiometer measurements of Northern Hemisphere mid-latitude stratospheric HNO$_{3}$ profiles spanning 12 years},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {7},
YEAR = {2007},
NUMBER = {23},
PAGES = {6075--6084},
URL = {http://www.atmos-chem-phys.net/7/6075/2007/},
ISSN = {1680-7316}
}