You seem to be attempting to access an item that has been removed from the repository.
There is a later version of the item you are trying to access:
De Vries, Christopher M., De Vine, Lance, & Geva, Shlomo (2009) Random Indexing K-tree. In Kay, Judy, Thomas, Paul, & Trotman, Andrew (Eds.) ADCS 2009 : Proceedings of the Fourteenth Australasian Document Computing Symposium, School of Information Technologies, University of Sydney, University of New South Wales, Sydney.