Chemical NOx budget in the upper troposphere over the tropical South Pacific
Schultz, M., D.J. Jacob, J.D. Bradshaw, S.T. Sandholm, J.E. Dibb, R. Talbot, and H.B. Singh (2000), Chemical NOx budget in the upper troposphere over the tropical South Pacific, J. Geophys. Res., 105, 6669-6679.