@misc{indiciae5bc2b29967c6,
  title = {Conceptual and numerical models of groundwater flow in the Ogallala aquifer in Gregory and Tripp Counties, South Dakota, water years 1985--2009},
  author = {Kyle W. Davis and Larry D. Putnam},
  year = {2013},
  doi = {10.3133/sir20135069},
  url = {https://pubs.usgs.gov/publication/sir20135069},
  note = {Source identifier: sir20135069}
}