@misc{indiciae79cca4aecf51,
  title = {When symmetry breaks down.},
  author = {Edward Witten},
  year = {2004},
  doi = {10.1038/429507a},
  url = {https://pubmed.ncbi.nlm.nih.gov/15175731/},
  note = {Source identifier: 15175731}
}