@inproceedings{hirao-etal-2004-corpus,
    title = "Corpus and Evaluation Measures for Multiple Document Summarization with Multiple Sources",
    author = "Hirao, Tsutomu  and
      Fukusima, Takahiro  and
      Okumura, Manabu  and
      Nobata, Chikashi  and
      Nanba, Hidetsugu",
    booktitle = "{COLING} 2004: Proceedings of the 20th International Conference on Computational Linguistics",
    month = "aug 23–aug 27",
    year = "2004",
    address = "Geneva, Switzerland",
    publisher = "COLING",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/C04-1077/",
    pages = "535--541"
}