@misc{indiciae96b1589606be,
  title = {Influence of perched groundwater on base flow},
  author = {Richard G. Niswonger and Graham E. Fogg},
  year = {2008},
  doi = {10.1029/2007wr006160},
  url = {https://pubs.usgs.gov/publication/70033690},
  note = {Source identifier: 70033690}
}