@inproceedings{wiegand-ruppenhofer-2015-opinion,
    title = "Opinion Holder and Target Extraction based on the Induction of Verbal Categories",
    author = "Wiegand, Michael  and
      Ruppenhofer, Josef",
    booktitle = "Proceedings of the Nineteenth Conference on Computational Natural Language Learning",
    month = jul,
    year = "2015",
    address = "Beijing, China",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/K15-1022/",
    doi = "10.18653/v1/K15-1022",
    pages = "215--225"
}