TY  - RPRT
TI  - User's guide for MODPATH/MODPATH-PLOT, Version 3; a particle tracking post-processing package for MODFLOW, the U.S. Geological Survey finite-difference ground-water flow model
AU  - David W. Pollock
PY  - 1994
DO  - 10.3133/ofr94464
UR  - https://pubs.usgs.gov/publication/ofr94464
ID  - ofr94464
ER  -