@inproceedings{poveda-etal-2009-analysis,
    title = "An Analysis of Bootstrapping for the Recognition of Temporal Expressions",
    author = "Poveda, Jordi  and
      Surdeanu, Mihai  and
      Turmo, Jordi",
    editor = "Wang, Qin Iris  and
      Duh, Kevin  and
      Lin, Dekang",
    booktitle = "Proceedings of the {NAACL} {HLT} 2009 Workshop on Semi-supervised Learning for Natural Language Processing",
    month = jun,
    year = "2009",
    address = "Boulder, Colorado",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/W09-2207/",
    pages = "49--57"
}