@inproceedings{DelanyICCBR07,
  author    = {Sarah Jane Delany and
               Derek G. Bridge},
  title     = {Catching the Drift: Using Feature-Free Case-Based Reasoning
               for Spam Filtering},
  pages     = {314-328},
  editor    = {Rosina Weber and
               Michael M. Richter},
  booktitle     = {Case-Based Reasoning Research and Development, 7th International
               Conference on Case-Based Reasoning, ICCBR 2007, Belfast,
               Northern Ireland, UK, August 13-16, 2007, Proceedings},
  publisher = {Springer},
  series    = {Lecture Notes in Computer Science},
  volume    = {4626},
  year      = {2007}
 }