@misc{indiciae2e78ee6237c0,
  title = {Lorentz group and spherical impulsive gravity waves.},
  author = {PA Hogan},
  year = {1994},
  doi = {10.1103/physrevd.49.6521},
  url = {https://pubmed.ncbi.nlm.nih.gov/10016976/},
  note = {Source identifier: 10016976}
}