TY - RPRT TI - MODFLOW-2000, the U.S. Geological Survey Modular Ground-Water Model; documentation of packages for simulating evapotranspiration with a segmented function (ETS1) and drains with return flow (DRT1) AU - Edward R. Banta PY - 2000 DO - 10.3133/ofr00466 UR - https://pubs.usgs.gov/publication/ofr00466 ID - ofr00466 ER -