@inproceedings{tsukamoto2002conll,
   author     = "Koji Tsukamoto and Yutaka Mitsuishi and Manabu Sassano",
   title      = "Learning with Multiple Stacking for Named Entity
                 Recognition",
   booktitle  = "Proceedings of CoNLL-2002",
   editors    = "Dan Roth and Antal van den Bosch",
   publisher  = "Taipei, Taiwan",
   pages      = "191--194",
   year       = "2002"
}