@misc{indiciae753ef3570083,
  title = {A portable, programmed, audible timer.},
  author = {H R Quilitch},
  year = {1972},
  doi = {10.1901/jaba.1972.5-18},
  url = {https://pubmed.ncbi.nlm.nih.gov/16795314/},
  note = {Source identifier: 16795314}
}