@inproceedings{emptycategorydetectionusingpathfeatures,
  title = {Empty Category Detection using Path Features and Distributed Case Frames},
  author = {Shunsuke Takeno and Masaaki Nagata and Kazuhide Yamamoto},
  year = {2015},
  booktitle = {EMNLP 2015 9},
  url = {https://aclanthology.org/D15-1156},
}