@inproceedings{parsingwithtracesanon4algorithmanda,
  title = {Parsing with Traces: An O(n4) Algorithm and a Structural Representation},
  author = {Jonathan K. Kummerfeld and Dan Klein},
  year = {2017},
  booktitle = {TACL 2017 1},
  url = {https://aclanthology.org/Q17-1031},
}