H. Opgenoorth

Simultaneous bistatic European Incoherent Scatter UHF, 145‐MHz radar and stimulated electromagnetic emission observations during HF ionospheric modification

G. Wannberg, T. Leyser, M. Rietveld, 1988 .

Solar radio emission as a disturbance of aeronautical radionavigation

C. Monstein, S. Krucker, A. Pulkkinen, 2018, 1808.06878.

The Trigger Phase of Magnetospheric Substorms

T. Pulkkinen, K. Kauristie, A. Huuskonen, 1994 .