Liu, S. C.,
H. Yu,
B. Ridley,
Y. Wang, D. D. Davis,
Y. Kondo,
M. Koike,
B. E. Anderson,
G. Sachse, G. L. Gregory, H. Fuelburg,
A. M. Thompson, and
H. Singh (1999), Sources of reactive nitrogen in the upper troposphere during SONEX,
Geophys. Res. Lett., 26, 2441-2444.