@article{weko_66521_1, author = "Keita,Emura and Atsuko,Miyaji and Kazumasa,Omote", title = "A Dynamic Attribute-Based Group Signature Scheme and Its Application in an Anonymous Survey for the Collection of Attribute Statistics", journal = "Journal of information processing", year = "2009", volume = "17", number = "", pages = "216--231", month = "sep" }