1. Akopov, I.I., Antipov, Yu.N., Velikhov, E.P., et al., Special Geophysical Test Facility “Poligon-1” Intended for Electromagnetic Probing of the Earth Crust, Preprint of IVTAN no. 3-095, Moscow: IVTAN, 1982.
2. Barannik, M.B., Dolbnya, A.G., Zhamaletdinov, A.A., Efimov, B.V., Katanovich, A.A., Kontorovich, V.V., Kolobov, V.V., Kuzevanov, V.I., Lavrukhin, V.A., Lisitsin, Yu.D., Panfilov, A.S., Pesin, L.B., Prokopchuk, V.I., Fesenko, Yu.V., and Shvetsov, A.N., RF Patent no. 57020, 2006.
3. Barsukov, O.M., Possible Criteria of the Earthquake Prediction: ρk Measuring over Time, Izv. AN USSR. Fizika Zemli, 1968, no. 7, pp. 86–88.
4. Barsukov, O.M. and Sorokin, O.N., The Variation of Rocks Apparent Resistance in Garmskii Seismo-Active Region, Izv. AN USSR. Fizika Zemli, 1973, no. 10, pp. 100–102.
5. Botbaev, B.A., Romanchenko, O.L., and Tuleev, M.B., Geofizicheskie ustanovki dlya glubinnogo elektromagnitnogo zondirovaniya zemnoi kory s ispol’zovaniem LEP. Glubinnye geoelektricheskie issledovaniya s ispol’zovaniem promyshlennykh linii elektroperedach (The Geophysical Test Facilities Intended for Depth Electromagnetic Sounding of the Earth Crush by Using the Power Lines. Depth Geoelectrical Investigations by Using the Industrial Power Lines), Apatity: Kol’skii filial AN USSR, 1990, pp. 81–86.