@inproceedings{weko_170313_1,
   author	 = "我妻,静香 and 藤代,一成 and 堀井,秀之",
   title	 = "階層的因果関係の可視化",
   booktitle	 = "第66回全国大会講演論文集",
   year 	 = "2004",
   volume	 = "2004",
   number	 = "1",
   pages	 = "141--142",
   month	 = "mar"
}