@inproceedings{weko_131381_1,
   author	 = "武藤,明宏",
   title	 = "著作権保護システム",
   booktitle	 = "全国大会講演論文集",
   year 	 = "1997",
   volume	 = "第54回",
   number	 = "データベースとメディア",
   pages	 = "121--122",
   month	 = "mar"
}