@InProceedings{Suutala04a,
  author = 	 {J. Suutala and S. Pirttikangas and J. Riekki and J. R\"oning},
  title = 	 {Reject-optional {LVQ}-based Two-level Classifier to Improve Reliability in Footstep identification}, 
  booktitle =	 {Proceedings of 2nd International Conference on Pervasive Computing (PERVASIVE 2004)},
  pages =        {182-187},
  year =	 {2004},
  editor =       {A. Ferscha and F. Mattern},
  address =	 {Linz/Vienna, Austria},
  month =	 {April 18-23},
  series =       {Lecture Notes in Computer Science},
  volume =       {3001},
  publisher =	 {Springer-Verlag},
  
}