@misc{indiciaead7dd2a9a968,
  title = {Comparison of correlation and modulus difference processing algorithms for the determination of foetal heart rate from ultrasonic Doppler signals.},
  author = {G K Manning and J H Dripps},
  year = {1986},
  doi = {10.1007/bf02443924},
  url = {https://pubmed.ncbi.nlm.nih.gov/3520175/},
  note = {Source identifier: 3520175}
}