@InProceedings{yamamoto-okuma-sumita:2008:SSST,
  author    = {Yamamoto, Hirofumi  and  Okuma, Hideo  and  Sumita, Eiichiro},
  title     = {Imposing Constraints from the Source Tree on {ITG} Constraints for {SMT}},
  booktitle = {Proceedings of the ACL-08:~HLT Second Workshop on Syntax and Structure in Statistical Translation (SSST-2)},
  month     = {June},
  year      = {2008},
  address   = {Columbus, Ohio},
  publisher = {Association for Computational Linguistics},
  pages     = {1--9},
  url       = {http://www.aclweb.org/anthology/W/W08/W08-0401}
}