@inproceedings{matsuzaki2003conll,
   author     = "Takuya Matsuzaki and Yusuke Miyao and Jun'ichi Tsujii,",
   title      = "An efficient clustering algorithm for class-based 
                 language models",
   booktitle  = "Proceedings of CoNLL-2003",
   editor     = "Walter Daelemans and Miles Osborne",
   publisher  = "Edmonton, Canada",
   pages      = "119--126",
   year       = "2003"
}