@misc{indiciae49acb1d42090,
  title = {Gravitational valves: relevant differences with different technical solutions to counteract hydrostatic pressure.},
  author = {M Kiefer and U Meier and R Eymann},
  year = {2006},
  doi = {10.1007/3-211-30714-1\_71},
  url = {https://pubmed.ncbi.nlm.nih.gov/16671482/},
  note = {Source identifier: 16671482}
}