@inproceedings{Nierste:2022MU,
  author = "Nierste, Ulrich",
  title = "{B-$\bar{\rm B}$ mixing: decay matrix at high precision}",
  doi = "10.22323/1.405.0020",
  booktitle = "Proceedings of 7th Symposium on Prospects in the Physics of Discrete Symmetries, DISCRETE 2020-2021 {\textemdash} PoS(DISCRETE2020-2021)",
  year = 2022,
  volume = "405",
  pages = "020"
}