TY - RPRT TI - Documentation of the Unsaturated-Zone Flow (UZF1) Package for modeling Unsaturated Flow Between the Land Surface and the Water Table with MODFLOW-2005 AU - Richard G. Niswonger AU - David E. Prudic AU - R. Steven Regan PY - 2006 DO - 10.3133/tm6a19 UR - https://pubs.usgs.gov/publication/tm6A19 ID - tm6A19 ER -