@misc{indiciaedfd800a365d9,
  title = {An easily constructed event marker.},
  author = {D H Strumeyer and B R Fisher},
  year = {1971},
  doi = {10.1016/0003-2697(71)90202-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/5578538/},
  note = {Source identifier: 5578538}
}