@misc{indiciae7d3e031bc68e,
  title = {Evidence for extended X-ray emission from globular clusters},
  author = {Hartwick, F. D. A. and Grindlay, J. E. and Cowley, A. P.},
  year = {1982},
  url = {https://ntrs.nasa.gov/citations/19820043850},
  note = {Source identifier: 19820043850}
}