@inproceedings{Wirzba:2022Xs,
  author = "Wirzba, Andreas",
  title = "{Strong CP Problem}",
  doi = "10.22323/1.412.0003",
  booktitle = "Proceedings of RDP online PhD school and workshop "Aspects of Symmetry" {\textemdash} PoS(Regio2021)",
  year = 2022,
  volume = "412",
  pages = "003"
}