@misc{indiciaef54e90f6539c,
  title = {Relativistic superfluids and vortex rings.},
  author = {RL Davis},
  year = {1989},
  doi = {10.1103/physrevd.40.4033},
  url = {https://pubmed.ncbi.nlm.nih.gov/10011785/},
  note = {Source identifier: 10011785}
}