In situ observations of NOy, O3, and NOy/O3 ratio in the lower stratosphere

Fahey, D.W., S.G. Donnelly, E.R. Keim, R.S. Gao, R.C. Wamsley, L.A. Del Negro, E.L. Woodbridge, M.H. Proffitt, K.H. Rosenlof, M.K.W. Ko, D.K. Weisenstein, C.J. Scott, C. Nevison, S. Solomon, and K.R. Chan (1996), In situ observations of NOy, O3, and NOy/O3 ratio in the lower stratosphere, Geophys. Res. Lett., 23, 1653-1656.