@misc{indiciae4b65ff2d7a0d,
  title = {Dark radiation from inflationary fluctuations},
  author = {Krnjaic, Gordan (ORCID:0000000174209577)},
  year = {2021},
  doi = {10.1103/physrevd.103.123507},
  url = {https://www.osti.gov/biblio/1786258},
  note = {Source identifier: 1786258}
}