@misc{indiciaeb88eba89f4fc,
  title = {Estimation of distributional parameters for censored trace-level water-quality data},
  author = {R. J. Gilliom and D.R. Helsel},
  year = {1984},
  doi = {10.3133/ofr84729},
  url = {https://pubs.usgs.gov/publication/ofr84729},
  note = {Source identifier: ofr84729}
}