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Google Analytics Dashboard for Digital engineering aspects of karst map: A GIS version of Davies, W.E., Simpson, J.H., Ohlmacher, G.C., Kirk, W.S., and Newton, E.G., 1984, Engineering aspects of karst: U.S. Geological Survey, National atlas of the United States of America, scale 1:7,500,000
Digital engineering aspects of karst map: A GIS version of Davies, W.E., Simpson, J.H., Ohlmacher, G.C., Kirk, W.S., and Newton, E.G., 1984, Engineering aspects of karst: U.S. Geological Survey, National atlas of the United States of America, scale 1:7,500,000