@inproceedings{weko_172351_1, author = "道下,学 and 釜坂,等 and 北上,眞二", title = "機器利用権によるアクセス制御", booktitle = "第68回全国大会講演論文集", year = "2006", volume = "2006", number = "1", pages = "323--324", month = "mar" }