@misc{indiciae785843bbf9db,
  title = {Physics. Superfluidity in a crystal?},
  author = {Tony Leggett},
  year = {2004},
  doi = {10.1126/science.1103584},
  url = {https://pubmed.ncbi.nlm.nih.gov/15345780/},
  note = {Source identifier: 15345780}
}