@misc{indiciae0437586f2b88,
  title = {Multichannel automatic natality sensor with instantaneous computer-integrator and audiovisual recorder. A new instrument.},
  author = {J F Hulka},
  year = {1971},
  url = {https://pubmed.ncbi.nlm.nih.gov/5538911/},
  note = {Source identifier: 5538911}
}