TY  - RPRT
TI  - A modular finite-element model (MODFE) for areal and axisymmetric ground-water-flow problems; Part 1, Model description and user's manual
AU  - Lynn J. Torak
PY  - 1992
DO  - 10.3133/ofr90194
UR  - https://pubs.usgs.gov/publication/ofr90194
ID  - ofr90194
ER  -