TY  - RPRT
TI  - USGS directions in MODFLOW development.
AU  - Paul M Barlow
AU  - Arlen W Harbaugh
DO  - 10.1111/j.1745-6584.2006.00260.x
UR  - https://pubmed.ncbi.nlm.nih.gov/17087746/
ID  - 17087746
ER  -