@inproceedings{singledocumentsummarizationastree,
  title = {Single Document Summarization as Tree Induction},
  author = {Yang Liu and Ivan Titov and Mirella Lapata},
  year = {2019},
  booktitle = {NAACL 2019 6},
  url = {https://aclanthology.org/N19-1173},
}