TY  - RPRT
TI  - Documentation of a computer program to estimate the head in a well of finite radius using the U.S. Geological Survey modular finite difference ground-water flow model
AU  - Michael Planert
PY  - 1997
DO  - 10.3133/ofr96651a
UR  - https://pubs.usgs.gov/publication/ofr96651A
ID  - ofr96651A
ER  -