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@misc{OAI:Balanced-Counterexamples-to-Rysers-Conjecture-at-Prime-Orders-September-27-2026,
  author = {{OpenAI}},
  title = {{Balanced counterexamples to Ryser's conjecture at prime orders}},
  howpublished = {OpenAI Math Release preprint
                  \href{https://github.com/openai/math/blob/main/preprints/Balanced-Counterexamples-to-Rysers-Conjecture-at-Prime-Orders-September-27-2026/paper.pdf}{OAI:Balanced-Counterexamples-to-Rysers-Conjecture-at-Prime-Orders-September-27-2026}},
  year = {2026}
}

@misc{OAI:A-Counterexample-to-Rysers-Covering-Conjecture-September-23-2026,
  author = {{OpenAI}},
  title = {{A counterexample to Ryser's covering conjecture}},
  howpublished = {OpenAI Math Release preprint
                  \href{https://github.com/openai/math/blob/main/preprints/A-Counterexample-to-Rysers-Covering-Conjecture-September-23-2026/paper.pdf}{OAI:A-Counterexample-to-Rysers-Covering-Conjecture-September-23-2026}},
  year = {2026}
}