@misc{indiciae1c82abd1a15b,
  title = {EGRET observations of 3C 273},
  author = {Von Montigny, C. and Bertsch, D. L. and Fichtel, C. E. and Hartman, R. C. and Hunter, S. D. and Kanbach, G. and Kniffen, D. A. and Kwok, P. W. and Lin, Y. C. and Mattox, J. R.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19930044902},
  note = {Source identifier: 19930044902}
}