Singh, H.B., E. Condon, J. Vedder, D. O’Hara, B. Ridley, B.W. Gandrud, J.D. Shetter, L.J. Salas, B. Huebert, G. Hübler, M.A. Carroll, D.L. Albritton, D.D. Davis, J.D. Bradshaw, S.T. Sandholm, M.O. Rodger, S.M. Beck, G.L. Gregory, and P.J. LeBel (1990), Peroxycetyl Nitrate Measurements During CITE 2: Atmospheric Distribution and Precursor Relationships, J. Geophys. Res., 95, 10163.