Nevedrova, N. N., and M. I. Epov. “Electromagnetic Monitoring in Seismically Active Regions of Siberia”. Geofizicheskiy Zhurnal, vol. 34, no. 4, Aug. 2012, pp. 209-23, doi:10.24028/gzh.0203-3100.v34i4.2012.116775.