TY - RPRT TI - VS2DI—A graphical software package for simulating fluid flow and solute or energy transport in variably saturated porous media AU - Paul A. Hsieh AU - W.L. Wingle AU - Richard W. Healy PY - 2000 DO - 10.3133/wri994130 UR - https://pubs.usgs.gov/publication/wri994130 ID - wri994130 ER -