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Presentation at 2008 International Conference on Environmental and Engineering Geoscience (ICEEG 2008): Detection and Characterization of Cavities, Tunnels, and Abandoned Mines by Dwain K. Butler, PhD, PG US Army Engineer Research and Development Center Vicksburg, Mississippi Open Access - Permission by Author(s) (2008) See Extended description for more information.
"￼￼Detection and Characterization of Cavities, Tunnels, and Abandoned Mines" (2008). KIP Articles. 5449.