RT Journal Article SR Electronic(1) A1 P. Chubinsky, N. A1 G. Chernokalov, A. A1 V. Druchinin, S. A1 Vu. Krampuls, A.YR 1998 T1 Ground penetrating radar for advance ground checking and crack detection during tunneling JF , VO OP SP cp-43-00140 DO https://doi.org/10.3997/2214-4609.201407165 PB European Association of Geoscientists & Engineers, SN 2214-4609, AB , UL https://www.earthdoc.org/content/papers/10.3997/2214-4609.201407165