@inproceedings{Castro:2021YC,
  author = "Castro, Andrea",
  title = "{Measurements of ${\rm t\bar t+jets}$, ${\rm t\bar t}+{\rm b\bar b}$, and ${\rm t\bar t}{\rm t\bar t}$ production at CMS}",
  doi = "10.22323/1.390.0320",
  booktitle = "Proceedings of 40th International Conference on High Energy physics {\textemdash} PoS(ICHEP2020)",
  year = 2021,
  volume = "390",
  pages = "320"
}