@misc{indiciae019fb51885ca,
  title = {The Chöffler train.},
  author = {J L Burton and P A Burton},
  year = {1972},
  doi = {10.1016/s0140-6736(72)90885-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/4110665/},
  note = {Source identifier: 4110665}
}