@inproceedings{flexiblenonterminalsfordependencytreeto,
  title = {Flexible Non-Terminals for Dependency Tree-to-Tree Reordering},
  author = {John Richardson and Fabien Cromi{\`e}res and Toshiaki Nakazawa and Sadao Kurohashi},
  year = {2016},
  booktitle = {NAACL 2016 6},
  url = {https://aclanthology.org/N16-1002},
}