TY  - RPRT
TI  - Direct solution package based on alternating diagonal ordering for the U.S. Geological Survey modular finite-difference ground-water flow model
AU  - Arlen W. Harbaugh
PY  - 1995
DO  - 10.3133/ofr95288
UR  - https://pubs.usgs.gov/publication/ofr95288
ID  - ofr95288
ER  -