@inproceedings{fontana-etal-2026-hidden,
    title = "On the Hidden Objective Biases of Group-based Reinforcement Learning",
    author = "Fontana, Aleksandar  and
      Simoni, Marco  and
      Rossolini, Giulio  and
      Mori, Paolo  and
      Saracino, Andrea",
    editor = "Liakata, Maria  and
      Moreira, Viviane P.  and
      Zhang, Jiajun  and
      Jurgens, David",
    booktitle = "Proceedings of the 64th Annual Meeting of the {A}ssociation for {C}omputational {L}inguistics (Volume 2: Short Papers)",
    month = jul,
    year = "2026",
    address = "San Diego, California, United States",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest-acl/2026.acl-short.11/",
    pages = "109--121",
    ISBN = "979-8-89176-391-3"
}