@misc{indiciae7c173354a9fa,
  title = {Ferrofluids as thermal ratchets.},
  author = {Andreas Engel and Hanns Walter Müller and Peter Reimann and Achim Jung},
  year = {2003},
  doi = {10.1103/physrevlett.91.060602},
  url = {https://pubmed.ncbi.nlm.nih.gov/12935061/},
  note = {Source identifier: 12935061}
}