@misc{indiciae17627b6ebfa4,
  title = {The Newman-Penrose map and the classical double copy},
  author = {Elor, Gilly and Farnsworth, Kara and Graesser, Michael L. and Herczeg, Gabriel},
  year = {2020},
  doi = {10.1007/jhep12(2020)121},
  url = {https://www.osti.gov/biblio/1774147},
  note = {Source identifier: 1774147}
}