@misc{indiciae66fc8ae4bd80,
  title = {Nonsingular global strings.},
  author = {R Gregory},
  year = {1996},
  doi = {10.1103/physrevd.54.4955},
  url = {https://pubmed.ncbi.nlm.nih.gov/10021185/},
  note = {Source identifier: 10021185}
}