@misc{indiciae0135a12ee0b0,
  title = {Hard X-rays from the Crab pulsar.},
  author = {Floyd, F. W. and Glass, I. S. and Schnopper, H. W.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19700034229},
  note = {Source identifier: 19700034229}
}