@misc{indiciaee2d068abbee4,
  title = {Definition of boundary and initial conditions in the analysis of saturated ground-water flow systems - An introduction},
  author = {O. Lehn Franke and Thomas E. Reilly and Gordon D. Bennett},
  year = {1987},
  doi = {10.3133/twri03b5},
  url = {https://pubs.usgs.gov/publication/twri03B5},
  note = {Source identifier: twri03B5}
}