@inproceedings{zubiaga-etal-2009-unlabeled,
    title = "Is Unlabeled Data Suitable for Multiclass {SVM}-based Web Page Classification?",
    author = "Zubiaga, Arkaitz  and
      Fresno, V{\'i}ctor  and
      Mart{\'i}nez, Raquel",
    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/W09-2204/",
    pages = "28--36"
}