@InProceedings{ZhangGildea-ssst07,
  author = {Hao Zhang and Daniel Gildea},
  title = {Factorization of Synchronous Context-Free Grammars in Linear Time},
  booktitle = {NAACL Workshop on Syntax and Structure in Statistical
  Translation (SSST)},
  year = {2007},
  pages = {25--32},
  URL = {http://www.cs.rochester.edu/~gildea/pubs/zhang-gildea-ssst07.pdf}
}
