@misc{indiciaeda8d39013eac,
  title = {Taking a closer look: time sampling and measurement error.},
  author = {J Powell and B Martindale and S Kulp and A Martindale and R Bauman},
  year = {1977},
  doi = {10.1901/jaba.1977.10-325},
  url = {https://pubmed.ncbi.nlm.nih.gov/16795556/},
  note = {Source identifier: 16795556}
}