TY - RPRT TI - GWM-a ground-water management process for the U.S. Geological Survey modular ground-water model (MODFLOW-2000) AU - David P. Ahlfeld AU - Paul M. Barlow AU - Anne E. Mulligan PY - 2005 DO - 10.3133/ofr20051072 UR - https://pubs.usgs.gov/publication/ofr20051072 ID - ofr20051072 ER -