RT Journal Article SR Electronic(1) A1 Manstein, A. A1 Manstein, Y.YR 2003 T1 EMS electromagnetic multi-frequency sounding device JF , VO OP SP cp-52-00162 DO https://doi.org/10.3997/2214-4609.201414632 PB European Association of Geoscientists & Engineers, SN 2214-4609, AB , UL https://www.earthdoc.org/content/papers/10.3997/2214-4609.201414632