@inproceedings{zhou-etal-2026-hard,
    title = "Hard or Just Unreached? Diagnosing the Sampling Blind Spot in Math-Reasoning Difficulty Estimation",
    author = "Zhou, Luca  and
      Shah, Sajel  and
      Rodol{\`a}, Emanuele  and
      Dessi, Roberto",
    editor = "Valentino, Marco  and
      Ferreira, Deborah  and
      Thayaparan, Mokanarangan  and
      Ranaldi, Leonardo  and
      Cheng, Jo-Ku  and
      Freitas, Andre",
    booktitle = "The Proceedings of the 4th Workshop on Mathematical Natural Language Processing ({M}ath{NLP} 2026)",
    month = oct,
    year = "2026",
    address = "Budapest, Hungary",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2026.mathnlp-main.2/",
    pages = "13--29",
    ISBN = "979-8-89176-468-2"
}