@misc{indiciae53c0f009fa2d,
  title = {Automatic unidirectional flow valve.},
  author = {D F REES},
  year = {1960},
  doi = {10.1111/j.1365-2044.1960.tb13910.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/14436890/},
  note = {Source identifier: 14436890}
}