@inproceedings{matsuzaki-etal-2003-efficient,
    title = "An efficient clustering algorithm for class-based language models",
    author = "Matsuzaki, Takuya  and
      Miyao, Yusuke  and
      Tsujii, Jun{'}ichi",
    booktitle = "Proceedings of the Seventh Conference on Natural Language Learning at {HLT}-{NAACL} 2003",
    year = "2003",
    url = "https://preview.aclanthology.org/iwcs-25-ingestion/W03-0416/",
    pages = "119--126"
}