@misc{indiciae7195baf90577,
  title = {A conceptual model of the hydrologic system supplying the large springs in the Ozarks},
  author = {Gerald Leon Feder},
  year = {1973},
  doi = {10.3133/ofr741031},
  url = {https://pubs.usgs.gov/publication/ofr741031},
  note = {Source identifier: ofr741031}
}