@Article{esponda08a,
  author = 	 {F. Esponda},
  title = 	 {Everything that is not Important: Negative Databases},
  journal = 	 {IEEE Computational Intelligence Magazine},
  year = 	 {2008},
  OPTkey = 	 {},
  volume = 	 {3},
  number = 	 {2},
  pages = 	 {60-63},
  month = 	 {May},
  OPTnote = 	 {},
  OPTannote = 	 {}
}