@inproceedings{areassessmentofreferencebasedgrammatical,
  title = {A Reassessment of Reference-Based Grammatical Error Correction Metrics},
  author = {Shamil Chollampatt and Hwee Tou Ng},
  year = {2018},
  booktitle = {COLING 2018 8},
  url = {https://aclanthology.org/C18-1231},
}