@misc{indiciaeda7a64533713,
  title = {The soft X-ray excess in Einstein quasar spectra},
  author = {Masnou, J. L. and Wilkes, B. J. and Elvis, M. and Mcdowell, J. C. and Arnaud, K. A.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19920040184},
  note = {Source identifier: 19920040184}
}