1. V. I. Afanas'ev (editor), Handbook of Variable Magnetic Fields [in Russian], Gidrometeorizdat, Moscow (1954).
2. S. K. Mitra, The Upper Atmosphere [Russian translation], IL, Moscow (1955).
3. M. S. Aleksandrov (editor), Electromagnetic Field Fluctuations in the ELF Band [in Russian], Izd. Nauka, Moscow (1972).
4. A. V. Gul'el'mi and V. A. Troitskii, Geomagnetic Pulsations and Magnetosphere Diagnostics [in Russian], Izd. Nauka, Moscow (1973).
5. V. L. Ginzburg, Propagation of Electromagnetic Waves in Plasma [in Russian], Fizmatgiz, Moscow (1967).