@inproceedings{hybridquestionansweringoverknowledgebase,
  title = {Hybrid Question Answering over Knowledge Base and Free Text},
  author = {Kun Xu and Yansong Feng and Songfang Huang and Dongyan Zhao},
  year = {2016},
  booktitle = {COLING 2016 12},
  url = {https://aclanthology.org/C16-1226},
}