1. (1) T. Takeuti, M. Nakano, M. Brook, D. J. Raymond, and P. Krehbiel: “The anomalous winter thunderstorms of the Hokuriku Coast”, J. Geophys. Res., Vol. 83(C3), pp. 2385-2394 (1978)
2. The electrical structure of the hokuriku winter thunderstorms
3. A Combined TOA/MDF Technology Upgrade of the U.S. National Lightning Detection Network
4. (4) N. Itamoto, K. Shinjo, M. Saito, and M. Ishii: “Study of lightning current waveform based on observed electromagnetic field in Hokuriku area”, Proc. 28th Int. Conf. on Lightning Protection, Session I-A, Kanazawa (2006)
5. (5) M. Ishii, M. Saito, J. Hojo, and K. Kami: “Location of charges associated with positive C-G flashes in winter”, Proc. 12th Int. Conf. on Atmospheric Electricity, pp. 151-154, Versailles (2003)