@misc{indiciae3d86e0f647fd,
  title = {Solving the characteristic initial-value problem for colliding plane gravitational and electromagnetic waves.},
  author = {G A Alekseev and J B Griffiths},
  year = {2001},
  doi = {10.1103/physrevlett.87.221101},
  url = {https://pubmed.ncbi.nlm.nih.gov/11736391/},
  note = {Source identifier: 11736391}
}