@Article{ cassis,
  author = 	 {Kai Christian Bader and Christian Grothoff and Harald Meier},
  title = 	 {Comprehensive and relaxed search for oligonucleotide signatures in hierarchically-clustered sequence datasets},
  journal = 	 {Bioinformatics},
  year = 	 {2011},
  publisher =    {Oxford University Press},
  volume = 	 {27},
  number = 	 {11},
  pages = 	 {1546--1554},
  month = 	 {June},
}