@InCollection{santos2013spam,
  author     = 	 {I. Santos and C. Laorden and X. Ugarte and B. Sanz and P.G. Bringas},
  title      = 	 {Spam Filtering through Anomaly Detection},
  booktitle  = 	 {E-Business and Telecommunications},
  pages      =	 {203--216},
  publisher  =	 {Springer Berlin Heidelberg},
  year       =	 2012,
  editor     =	 {Mohammad S. Obaidat, José L. Sevillano, Joaquim Filipe}
}