@misc{indiciaee79d0b25c852,
  title = {Computer program for the Kendall family of trend tests},
  author = {Dennis R. Helsel and David K. Mueller and James R. Slack},
  year = {2006},
  doi = {10.3133/sir20055275},
  url = {https://pubs.usgs.gov/publication/sir20055275},
  note = {Source identifier: sir20055275}
}