@misc{indiciae725840ad97a2,
  title = {X-ray spectral evolution of high redshift quasars},
  author = {Bechtold, Jill and Elvis, Martin and Fiore, Fabrizio and Kuhn, Olga and Cutri, Roc M. and Mcdowell, Jonathan C. and Rieke, Marcia and Siemiginowska, Aneta and Wilkes, Belinda J.},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/19950033227},
  note = {Source identifier: 19950033227}
}