@misc{indiciaef28465b30a3a,
  title = {A novel, adaptable and inexpensive computerized activity meter.},
  author = {H K Kulmala and J W Boja and J T Hutton},
  year = {1987},
  doi = {10.1016/0361-9230(87)90137-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/3607533/},
  note = {Source identifier: 3607533}
}