@misc{indiciae18e260166521,
  title = {Cosmic strings coupled with gravitational and electromagnetic waves.},
  author = {BC Xanthopoulos},
  year = {1987},
  doi = {10.1103/physrevd.35.3713},
  url = {https://pubmed.ncbi.nlm.nih.gov/9957631/},
  note = {Source identifier: 9957631}
}