@misc{indiciaeca81b8009ca7,
  title = {Index theorems and superconducting cosmic strings.},
  author = {GW Semenoff},
  year = {1988},
  doi = {10.1103/physrevd.37.2838},
  url = {https://pubmed.ncbi.nlm.nih.gov/9958560/},
  note = {Source identifier: 9958560}
}