@misc{indiciaebf42e89fd80f,
  title = {Extended source of energetic cosmic X rays.},
  author = {Boldt, E. and Mcdonald, F. B. and Riegler, G. and Serlemitsos, P.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19660059977},
  note = {Source identifier: 19660059977}
}