Jul 14 Direct detection by a Whistler method of the magnetospheric electric field associated with a polar substorm
Jul 14 Midlatitude Observations of Nighttime VLF Signal-Amplitude Anomalies Associated with Magnetic Bays
Jul 14 Whistler Studies of the Plasmapause in the Magnetosphere, 2, Electron Density and Total Tube Electron Content near the Knee in Magnetospheric Ionization