@inproceedings{weko_165983_1, author = "武井,英明 and 佐藤,友康 and 花木,三良", title = "IP 音声ASP サービス課金システム構成法の検討", booktitle = "第64回全国大会講演論文集", year = "2002", volume = "2002", number = "1", pages = "243--244", month = "mar" }