2 papers were published in 1997.
Araki, T., S. Fujitani, M. Emoto, K. Yumoto, K. Shiokawa, T. Ichinose, H. Luhr, D. Orr, D.K. Milling, H. Singer, G. Rostoker, S. Tsunomura, Y. Yamada and C.F. Liu,
Anomalous sudden commencement on March 24, 1991,
J. Geophys. Res., 102, 14075-14086, 1997.
Nozawa, S., A. Brekke, and R. Fujii,
Studies of the E region neutral wind in the auroral ionosphere using two long-run data,
J. Geomagn. Geoelectr., 49, 641-673, 1997.