Investigation of the geoelectrical structure of the Earth's crust by phase-gradient sounding Kopytenko, Yu. A. ; Ismagilov, V. S. ; Petrishchev, M. S. Abstract Publication: Doklady Earth Sciences Pub Date: May 2015 DOI: 10.1134/S1028334X15050232 Bibcode: 2015DokES.462..539K