Perkins, K. K., T. F. Hanisco, R. C. Cohen, L. C. Koch, R. Stimpfle, P. B. Voss, G. P. Bonne, E. J. Lanzendorf, J. Anderson, P. Wennberg, R. Gao, L. A. Del Negro, R. Salawitch, C. T. McElroy, E. Hintsa, M. Loewenstein, and T. P. Bui (2001), The Nox-HNO3 System in the lower stratosphere: Insights from in situ measurements and implications of the JHNO3-[OH] relationship, J. Phys. Chem. A, 105, 1521-1534.