@inproceedings{problematiccasesintheannotationof,
  title = {Problematic Cases in the Annotation of Negation in Spanish},
  author = {Salud Mar{\'\i}a Jim{\'e}nez-Zafra and Maite Martin and L. Alfonso Ure{\~n}a-L{\'o}pez and Toni Mart{\'\i} and Mariona Taul{\'e}},
  year = {2016},
  booktitle = {WS 2016 12},
  url = {https://aclanthology.org/W16-5006},
}