@misc{indiciaeb5f29d4024a4,
  title = {A warning device which indicates the stoppage of paper in an ink-writing recorder.},
  author = {M W Johns and E S Reeves},
  year = {1976},
  doi = {10.1016/0013-4694(76)90104-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/60228/},
  note = {Source identifier: 60228}
}