1. (1) K. Miyake, T. Suzuki, M. Takashima, M. Takuma, and T. Tada: “Winter lightning on Japan Sea coast-lightning striking frequency to tall structures”, IEEE Trans. Power Delivery, Vol. 5, pp. 1370-1376, doi: 10.1109/61.57979 (1990)
2. (3) K. Michimoto: “A study of radar echoes and their relation to lightning discharge of thunderclouds in the Hokuriku district. Part I: Observation and analysis of thunderclouds in summer and winter”, J. Meteor. Soc. Jpn, Vol. 69, pp. 327-336 (1991)
3. (4) G. Fujisawa and R. Kawamura: “Recent Tendencies of Winter Thunderstoms in the Hokuriku District and Associated Atmospheric Conditions”, Tenki, Vol. 52, pp. 450-460 (2005) (in Japanese)
4. (5) T. Tsurushima, K. Sakaida, and N. Honma: “Climatological Features of Winter Lightning Activity in the Coastal Area of Sea of Japan, Tohoku and Hokuriku District”, Quarterly J. Geogr., Vol. 65, pp. 189-206 (2014) (in Japanese)
5. (6) T. Takahashi, S. Sugimoto, T. Kawano, and K. Suzuki: “Riming Electrification in Hokuriku Winter Clouds and Comparison with Laboratory Observations”, J. Atmos. Sci., Vol. 74, pp. 431-447 (2017)