@inproceedings{combiningsecondordergraphbasedandheaded,
  title = {Combining (second-order) graph-based and headed-span-based projective dependency parsing},
  author = {Songlin Yang and Kewei Tu},
  year = {2021},
  booktitle = {Findings (ACL) 2022 5},
  eprint = {2108.05838},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2108.05838v2},
}