To cite EGRETci in publications, please use:

  Hirsch, R.M., De Cicco, L.A., Archfield, S.A., Murphy, J.C., 2023,
  Exploration and Graphics for RivEr Trends (EGRET) Uncertainty and
  Confidence Intervals, version 2.0.5, doi:10.5066/P9CC9JEX

A BibTeX entry for LaTeX users is

  @Manual{,
    author = {Robert M. Hirsch and Laura A. {De Cicco} and Stacey A. Archfield and Jennifer C. Murphy},
    title = {EGRETci},
    publisher = {U.S. Geological Survey},
    year = {2023},
    url = {https://pubs.usgs.gov/tm/04/a10/},
  }