TY  - RPRT
TI  - MODFLOW-2000, The U.S. Geological Survey Modular Ground-Water Model -- GMG Linear Equation Solver Package Documentation
AU  - John D. Wilson
AU  - Richard L. Naff
PY  - 2004
DO  - 10.3133/ofr20041261
UR  - https://pubs.usgs.gov/publication/ofr20041261
ID  - ofr20041261
ER  -