@inproceedings{weerkamp-etal-2009-generative,
    title = "A Generative Blog Post Retrieval Model that Uses Query Expansion based on External Collections",
    author = "Weerkamp, Wouter  and
      Balog, Krisztian  and
      de Rijke, Maarten",
    editor = "Su, Keh-Yih  and
      Su, Jian  and
      Wiebe, Janyce  and
      Li, Haizhou",
    booktitle = "Proceedings of the Joint Conference of the 47th Annual Meeting of the {ACL} and the 4th International Joint Conference on Natural Language Processing of the {AFNLP}",
    month = aug,
    year = "2009",
    address = "Suntec, Singapore",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest_wac_2008/P09-1119/",
    pages = "1057--1065"
}