@article{Maas:2022g8,
  author = "Maas, Axel  and  Zierler, Fabian",
  title = "{Strong isospin breaking in 𝑺𝒑(4) gauge theory}",
  doi = "10.22323/1.396.0130",
  journal = "PoS",
  year = 2022,
  volume = "LATTICE2021",
  pages = "130"
}