@inproceedings{zhang-etal-2019-hibert, title = "{HIBERT}: Document Level Pre-training of Hierarchical Bidirectional Transformers for Document Summarization", author = "Zhang, Xingxing and Wei, Furu and Zhou, Ming", editor = "Korhonen, Anna and Traum, David and M{\`a}rquez, Llu{\'i}s", booktitle = "Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics", month = jul, year = "2019", address = "Florence, Italy", publisher = "Association for Computational Linguistics", url = "https://aclanthology.org/P19-1499/", doi = "10.18653/v1/P19-1499", pages = "5059--5069" }