@article{weko_11503_1, author = "佐々木,良一 and 吉浦,裕 and 伊藤,信治", title = "不正コピー対策の最適組合せに関する考察", journal = "情報処理学会論文誌", year = "2002", volume = "43", number = "8", pages = "2435--2446", month = "aug" }