@misc{indiciaee33866bf3100,
  title = {A search for X-ray pulsations from Cygnus X-1},
  author = {Doxsey, R. and Rappaport, S. and Zaumen, W.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710058413},
  note = {Source identifier: 19710058413}
}