Weinheimer, A. J., Walega, J. G., Ridley, B. A., Gary, B. L., Blake, D. R., Blake, N. J., … Collins, J. E. (1994). Meridional distributions of NOx, NOy and other species in the lower stratosphere and upper troposphere during AASE II. Geophysical Research Letters, 21, 2583-2586. doi:10.1029/94GL01897