@inproceedings{kubler-zhekova-2011-singletons,
    title = "Singletons and Coreference Resolution Evaluation",
    author = {K{\"u}bler, Sandra  and
      Zhekova, Desislava},
    editor = "Mitkov, Ruslan  and
      Angelova, Galia",
    booktitle = "Proceedings of the International Conference Recent Advances in Natural Language Processing 2011",
    month = sep,
    year = "2011",
    address = "Hissar, Bulgaria",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/R11-1036/",
    pages = "261--267"
}