@misc{indiciae003c6e70fcb1,
  title = {Evolution of the cluster X-ray luminosity function slope},
  author = {Henry, J. P. and Briel, U. and Gunn, J. E. and Soltan, A.},
  year = {1982},
  url = {https://ntrs.nasa.gov/citations/19830030883},
  note = {Source identifier: 19830030883}
}