@inproceedings{yeswecanannotatingenglishmodalverbs,
  title = {Yes we can!? Annotating English modal verbs},
  author = {Josef Ruppenhofer and Ines Rehbein},
  year = {2012},
  booktitle = {LREC 2012 5},
  url = {https://aclanthology.org/L12-1458},
}