@article{Bevilacqua:2019uQ,
  author = "Bevilacqua, Giuseppe",
  title = "{On the ratio of $t\bar{t}\gamma$ and $t\bar{t}$ cross sections at the LHC}",
  doi = "10.22323/1.352.0115",
  journal = "PoS",
  year = 2019,
  volume = "DIS2019",
  pages = "115"
}