@misc{indiciaeaf6df49f2aac, title = {The principle of superposition and its application in ground-water hydraulics}, author = {Thomas E. Reilly and O. Lehn Franke and Gordon D. Bennett}, year = {1987}, doi = {10.3133/twri03b6}, url = {https://pubs.usgs.gov/publication/twri03B6}, note = {Source identifier: twri03B6} }