@inproceedings{clark2001conll,
   author     = "Alexander Clark",
   title      = "Unsupervised Induction of Stochastic Context-Free Grammars
                 using Distributional Clustering",
   editor     = "Walter Daelemans and R{\'e}mi Zajac",
   booktitle  = "Proceedings of CoNLL-2001",
   publisher  = "Toulouse, France",
   pages      = "105--112",
   year       = "2001"
}