@misc{abstentionbench,
  title = {AbstentionBench: Reasoning LLMs Fail on Unanswerable Questions},
  url = {https://arxiv.org/abs/2506.09038},
  year = {2025},
  date = {2025-06-10},
  version = {2026-10-25 source capture},
  note = {2026-10-25 source capture}
}

@misc{abstentionbench-nuwa,
  title = {AbstentionBench: Reasoning LLMs Fail on Unanswerable Questions — NUWA research record},
  url = {https://whitzard.tech/en/nuwa/whitzard-index/work/abstentionbench/},
  version = {2026-10-29.1},
  organization = {NUWA Frontier AI Safety Lab},
  howpublished = {Retained note edition: https://whitzard.tech/nuwa/whitzard-index/data/record-editions/2026-10-29.1--abstentionbench.json},
  note = {NUWA research note. Source-reading scope and independent review status are stated on the record. Snapshot 2026-10-29.1. Retained note edition: https://whitzard.tech/nuwa/whitzard-index/data/record-editions/2026-10-29.1--abstentionbench.json.}
}