Coexistence of ionospheric positive and negative storm phases under northern winter conditions: A case study

Lu, G., Richmond, A. D., Roble, R. G., & Emery, B. A. (2001). Coexistence of ionospheric positive and negative storm phases under northern winter conditions: A case study. Journal Of Geophysical Research-Space Physics, 106, 24493-24504. doi:10.1029/2001JA000003

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