@inproceedings{sun-2009-two,
    title = "A Two-stage Bootstrapping Algorithm for Relation Extraction",
    author = "Sun, Ang",
    editor = "Temnikova, Irina  and
      Nikolova, Ivelina  and
      Konstantinova, Natalia",
    booktitle = "Proceedings of the Student Research Workshop",
    month = sep,
    year = "2009",
    address = "Borovets, Bulgaria",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/R09-2014/",
    pages = "76--82"
}