@InProceedings{	  balthropetal02b,
  author	= {Justin Balthrop and Fernando Esponda and Stephanie Forrest and Matt
		  Glickman},
  title		= {Coverage and Generalization in an Artificial Immune
		  System},
  booktitle	= {Proceedings of the Genetic and Evolutionary Computation
		  Conference (GECCO-02)},
  pages         ={3--10},
  year		= {2002}
}