@MISC{HmmOnline,
  author =     {Boyle, Roger},
  title =        {Hidden-Markov-Model online Tutorium},
  howpublished = {\href{http://www.comp.leeds.ac.uk/roger/HiddenMarkovModels/html_dev/main.html}{HMM}},
}
@MISC{Wiki,
  title =        {Wikipedia},
  howpublished = {\href{http://de.wikipedia.org/wiki/HMM}{Verborgenes Markow-Modell}},
}
@InProceedings{Rabiner1989,
  author =    {Lawrence R., Rabiner},
  title =    {A Tutorial on Hidden Markov Models and Selected Applications in Speech Recognition},
  pages =    {257--286},
  year =    {1989},
  publisher =     {Institute of Electrical and Electronics Engineers },
}