1. Possible earth-quake precursors revealed by LF radio signals;Biagi;Natural Hazards and Earth System Sciences,2001
2. Variation in a LF radio signal on the occasion of the recent seismic and volcanic activity in Southern Italy;Biagi;Physics and Chemistry of the Earth,2004
3. Experience of the forecast of the Kamchatka earthquakes on the basis of observation for the electromagnetic VLF emission;Druzhin;Volcanology and Seismology,2002
4. A role of the world thunderstorm activity in the formations of the amplitude of regular noise background;Druzhin;Geomagnetism and Aeronomy,1988
5. Regular noise background in the VLF-emission and the world centers of thunderstorms;Druzhin;Geomagnetism and Aeronomy,1986