@article{weko_82755_1,
   author	 = "Hajime,Morita and Tetsuya,Sakai and Manabu,Okumura",
   title	 = "Query Snowball: A Co-occurrence-based Approach to Multi-document Summarization for Question Answering",
   journal	 = "情報処理学会論文誌データベース（TOD）",
   year 	 = "2012",
   volume	 = "5",
   number	 = "2",
   pages	 = "11--16",
   month	 = "jun"
}