RT Journal Article SR Electronic(1) A1 Kritikakis, G. A1 Vafidis, A. A1 Tsilfidis, G. A1 Papakonstantinou, K.YR 2019 T1 Crosshole seismic tomography for the detection of abandoned underground lignite mine galleries JF , VO 2019 IS 1 SP 1 OP 5 DO https://doi.org/10.3997/2214-4609.201902627 PB European Association of Geoscientists & Engineers, SN 2214-4609, AB , UL https://www.earthdoc.org/content/papers/10.3997/2214-4609.201902627