@inproceedings{isthissentencedifficultdoyouagree,
  title = {Is this Sentence Difficult? Do you Agree?},
  author = {Dominique Brunato and Lorenzo De Mattei and Felice Dell{'}Orletta and Benedetta Iavarone and Giulia Venturi},
  year = {2018},
  booktitle = {EMNLP 2018 10},
  url = {https://aclanthology.org/D18-1289},
}