@inproceedings{multilevelanalysisandrecognitionofthe,
  title = {Multi-level analysis and recognition of the text sentiment on the example of consumer opinions},
  author = {Jan Koco{\'n} and Monika Za{\'s}ko-Zieli{\'n}ska and Piotr Mi{\l}kowski},
  year = {2019},
  booktitle = {RANLP 2019 9},
  url = {https://aclanthology.org/R19-1066},
}