@InProceedings{EspondaEtalonline04,
  author =       "Fernando Esponda and Elena S. Ackley and Stephanie Forrest and Paul
                 Helman",
  title =        "On-line Negative Databases",
  booktitle =    "Proceedings of the 3rd International Conference on
                 Artificial Immune Systems (ICARIS)",
  year =         "2004",
  editor =       "G. Nicosia, V. Cutello, P. J. Bentley, J. Timmis",
  pages =        "175--188",
  address =      "Catania,Sicily, Italy",
  month =        Sep,
  publisher =    "Springer-Verlag",
}