@article{Hirtler:2022C4,
  author = "Hirtler, Dominic  and  Gattringer, Christof",
  title = "{Massless Schwinger model with a 4-fermi interaction at topological angle $\theta = \pi$}",
  doi = "10.22323/1.430.0372",
  journal = "PoS",
  year = 2022,
  volume = "LATTICE2022",
  pages = "372"
}