@inproceedings{liu-etal-2021-haconvgnn-hierarchical,
    title = "{HAC}onv{GNN}: Hierarchical Attention Based Convolutional Graph Neural Network for Code Documentation Generation in {J}upyter Notebooks",
    author = "Liu, Xuye  and
      Wang, Dakuo  and
      Wang, April  and
      Hou, Yufang  and
      Wu, Lingfei",
    editor = "Moens, Marie-Francine  and
      Huang, Xuanjing  and
      Specia, Lucia  and
      Yih, Scott Wen-tau",
    booktitle = "Findings of the Association for Computational Linguistics: EMNLP 2021",
    month = nov,
    year = "2021",
    address = "Punta Cana, Dominican Republic",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/2021.findings-emnlp.381/",
    doi = "10.18653/v1/2021.findings-emnlp.381",
    pages = "4473--4485"
}