TY  - RPRT
TI  - The cone of depression and its use in solving water problems
AU  - Edward J. Schaefer
PY  - 2006
DO  - 10.1111/j.1745-6584.1967.tb01242.x
UR  - https://pubs.usgs.gov/publication/70221352
ID  - 70221352
ER  -