@misc{indiciae41e8f3e44843,
  title = {Some topological invariants for three-dimensional flows.},
  author = {Emmanuel Dufraine},
  year = {2001},
  doi = {10.1063/1.1385918},
  url = {https://pubmed.ncbi.nlm.nih.gov/12779481/},
  note = {Source identifier: 12779481}
}