@inproceedings{daume-iii-2008-cross,
    title = "Cross-Task Knowledge-Constrained Self Training",
    author = "Daum{\'e} III, Hal",
    editor = "Lapata, Mirella  and
      Ng, Hwee Tou",
    booktitle = "Proceedings of the 2008 Conference on Empirical Methods in Natural Language Processing",
    month = oct,
    year = "2008",
    address = "Honolulu, Hawaii",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/D08-1071/",
    pages = "680--688"
}