@misc{indiciae34df366c1b19,
  title = {Estimating population trends with a linear model: Technical comments},
  author = {John R. Sauer and William A. Link and J. Andrew Royle},
  year = {2004},
  doi = {10.1650/7431},
  url = {https://pubs.usgs.gov/publication/5224335},
  note = {Source identifier: 5224335}
}