RT Journal Article SR Electronic(1) A1 Liu, H. A1 Wang, Z. A1 He, Z.YR 2008 T1 Frequency-domain 3D Borehole-surface Electromagnetic Modeling by the Volume Integral Equation Method JF , VO OP SP cp-40-00426 DO https://doi.org/10.3997/2214-4609.20147966 PB European Association of Geoscientists & Engineers, SN 2214-4609, AB , UL https://www.earthdoc.org/content/papers/10.3997/2214-4609.20147966