@inproceedings{finkel-manning-2009-nested,
    title = "Nested Named Entity Recognition",
    author = "Finkel, Jenny Rose  and
      Manning, Christopher D.",
    editor = "Koehn, Philipp  and
      Mihalcea, Rada",
    booktitle = "Proceedings of the 2009 Conference on Empirical Methods in Natural Language Processing",
    month = aug,
    year = "2009",
    address = "Singapore",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/D09-1015/",
    pages = "141--150"
}