TY  - RPRT
TI  - MODFLOW-2000, the U.S. Geological Survey modular ground-water model -- Three additions to the Hydrogeologic-Unit Flow (HUF) Package: Alternative storage for the uppermost active cells, Flows in hydrogeologic units, and the Hydraulic-conductivity depth-dependence (KDEP) capability
AU  - Evan R. Anderman
AU  - Mary C. Hill
PY  - 2003
DO  - 10.3133/ofr03347
UR  - https://pubs.usgs.gov/publication/ofr03347
ID  - ofr03347
ER  -