@misc{indiciae54eac0fb5bc8,
  title = {Use of long-term tritium records from the Colorado River to determine timescales for hydrologic processes associated with irrigation in the Imperial Valley, California},
  author = {Robert L. Michel and R.A. Schoeder},
  year = {1994},
  doi = {10.1016/0883-2927(94)90061-2},
  url = {https://pubs.usgs.gov/publication/70017514},
  note = {Source identifier: 70017514}
}