@misc{indiciaee9e3b123faf0,
  title = {Threshold limit values for carbon monoxide.},
  author = {A Grut and P Astrup and P J Challen and G Gerhardsson},
  year = {1970},
  doi = {10.1080/00039896.1970.10667286},
  url = {https://pubmed.ncbi.nlm.nih.gov/5457230/},
  note = {Source identifier: 5457230}
}