Levashov, S. P., Yakymchuk, N. A. and Korchagin, I. N. (2012) “Frequency-resonance principle, mobile geoelectric technology: new paradigm of geophysical investigations”, Geofizicheskiy Zhurnal, 34(4), pp. 166–176. doi: 10.24028/gzh.0203-3100.v34i4.2012.116766.