Reactive nitrogen and its correlation with ozone in the lower stratosphere and upper tropospere
Murphy, D., D.W. Fahey, . Proffitt, S.C. Liu, . Chan, C.S. Eubank, S.R. Kawa, and K. Kelly (1993), Reactive nitrogen and its correlation with ozone in the lower stratosphere and upper tropospere, J. Geophys, Res., 98, 8751-8773.