TY  - RPRT
TI  - MODFLOW-2000, the U. S. Geological Survey modular ground-water model; user guide to the Link-AMG (LMG) package for solving matrix equations using an algebraic multigrid solver
AU  - S.W. Mehl
AU  - M. C. Hill
PY  - 2001
DO  - 10.3133/ofr01177
UR  - https://pubs.usgs.gov/publication/ofr01177
ID  - ofr01177
ER  -