@misc{indiciae33785182664a,
  title = {X-ray emission lines from three Galactic bulge sources},
  author = {Vrtilek, S. D. and Helfand, D. J. and Halpern, J. P. and Kahn, S. M. and Seward, F. D.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19870032193},
  note = {Source identifier: 19870032193}
}