@misc{indiciaec82120b02d0c,
  title = {Soft X-ray emission from Hercules X-1},
  author = {Shulman, S. and Friedman, H. and Fritz, G. and Yentis, D. J. and Henry, R. C.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19750054735},
  note = {Source identifier: 19750054735}
}