@misc{indiciae81aaf9948cf0,
  title = {Monitoring, past, present, future. A personal journey.},
  author = {M H Harmel},
  year = {1986},
  doi = {10.1007/bf01880768},
  url = {https://pubmed.ncbi.nlm.nih.gov/3537176/},
  note = {Source identifier: 3537176}
}