@misc{indiciae8ce50a01ff6d,
  title = {[Hygiene problems in hospitals containing intermediate ceilings with metal elements].},
  author = {H Horn and R Machmerth},
  year = {1984},
  url = {https://pubmed.ncbi.nlm.nih.gov/6711048/},
  note = {Source identifier: 6711048}
}