@article{complexknowledgebasequestionansweringa,
  title = {Complex Knowledge Base Question Answering: A Survey},
  author = {Yunshi Lan and Gaole He and Jinhao Jiang and Jing Jiang and Wayne Xin Zhao and Ji-Rong Wen},
  year = {2021},
  eprint = {2108.06688},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2108.06688v5},
}