@misc{Wuebben2026-exotic-four-manifolds,
  author = {Bernd Johannes Wuebben},
  title = {{Toward an exotic S²×S² and an exotic ℂP²\#ℂP̄²}},
  year = {2026},
  url = {https://bwuebben.github.io/papers/exotic-four-manifolds/},
  note = {Working revision}
}