TY  - RPRT
TI  - Flow of ground water through fractured carbonate rocks in the Prairie du Chien-Jordan Aquifer, southeastern Minnesota
AU  - J. F. Ruhl
PY  - 1989
DO  - 10.3133/ofr89253
UR  - https://pubs.usgs.gov/publication/ofr89253
ID  - ofr89253
ER  -