Talbot, R., J. Dibb, E. Scheuer, Y. Kondo, M. Koike, H. Singh, L.B. Salas, Y. Fukui, J.O. Ballenthin, R.F. Meads, T.M. Miller, D.E. Hunton, A.A. Viggiano, D.R. Blake, N.J. Blake, E. Atlas, F. Flocke, D.J. Jacobs, and L. Jaeglé (1999), Reactive nitrogen budget during the SONEX mission, Geophys. Res. Lett., 26, 3057-3060.