@misc{indiciae0edf9ea3ba5a,
  title = {X-rays from the Orion Trapezium},
  author = {Bradt, H. V. and Kelley, R. L.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19790041814},
  note = {Source identifier: 19790041814}
}