@inproceedings{modelingdocumentlevelcausalstructuresfor,
  title = {Modeling Document-level Causal Structures for Event Causal Relation Identification},
  author = {Lei Gao and Prafulla Kumar Choubey and Ruihong Huang},
  year = {2019},
  booktitle = {NAACL 2019 6},
  url = {https://aclanthology.org/N19-1179},
}