4Bridget R.Scanlon,Robert E.Mace,Michael E.Barrett.Can we simulate regional groundwater flow in a karst system usingequivalent porous media models Case study Barton Springs Edwards aquifer.USA Journal of Hydrology,2003,276:137-158.
5Eung Seok Lee,Noel C.Krothe,A four-component mixing model for water in a karst terrain in south-central Indiana USA.Using solute concentration and stable isotopes as tracers,Chemical Geology 179(2001) 129-143.
6B.J.Barfield,G.K.Felton,E.W.Stevens,M.McCann,A simple model of karst spring fiowusing modified NRCS,procedures Journal of Hydrology 287 (2004) 34-48.
