1. Relationship between geomagnetic pulsations of the Pi 2 type and the parameters of the auroral zone;Afanasýeva;Geomagn. Aeron.,1970
2. Polar and Magneto spheric Substorms;Akasofu,1968
3. First observational results of geomagnetic Pi 2 and Pc 5 pulsations on a North-South profile through Europe;Björnsson;Z. Geophysik,1971
4. Potential double layers in the ionosphere;Block;Cosmic Electrodynamics,1972
5. Incoherent scatter measurements of the E region conductivities and currents in the auroral zone;Brekke;J. geophys. Res.,1974