@inproceedings{clark-etal-2003-bootstrapping,
    title = "Bootstrapping {POS}-taggers using unlabelled data",
    author = "Clark, Stephen  and
      Curran, James  and
      Osborne, Miles",
    booktitle = "Proceedings of the Seventh Conference on Natural Language Learning at {HLT}-{NAACL} 2003",
    year = "2003",
    url = "https://preview.aclanthology.org/fix-sig-urls/W03-0407/",
    pages = "49--55"
}