Shuman, V., Kobolev, V.P., Starostenko, V.I., Burkinskiy, I.B., Loyko, N.P., Zakharov, I.G. and Yatsiuta, D.A. 2012. A method of analysis of spontaneous electromagnetic emission of the Earth: physical backgrounds, elements of theory, field experiment. Geofizicheskiy Zhurnal. 34, 4 (Aug. 2012), 40–61. DOI:https://doi.org/10.24028/gzh.0203-3100.v34i4.2012.116749.