'Classification as a Tool for Research' : Proceedings of the 11th IFCS Biennial Conference and 33rd Annual Conference of the Gesellschaft fur Klassifikation e.V., Dresden, March 13-18, 2009.(Locarek-Junge, Hermann (編), Weihs, Claus (編))(Studies in Classification, Data Analysis, and Knowledge Organization) (forthcoming 確認済)