@inproceedings{hiebartdocumentsummarizationwith,
  title = {Hie-BART: Document Summarization with Hierarchical BART},
  author = {Kazuki Akiyama and Akihiro Tamura and Takashi Ninomiya},
  year = {2021},
  booktitle = {NAACL 2021 4},
  url = {https://aclanthology.org/2021.naacl-srw.20},
}