@misc{indiciaebbc790da66d2,
  title = {Critical evaluation of stable isotope mixing end-members for estimating groundwater recharge sources: Case study from the South Rim of the Grand Canyon, Arizona, USA},
  author = {John E. Solder and Kimberly R. Beisner},
  year = {2020},
  doi = {10.1007/s10040-020-02194-y},
  url = {https://pubs.usgs.gov/publication/70210995},
  note = {Source identifier: 70210995}
}