@InProceedings{lango-brzezinski-stefanowski:2016:SemEval,
  author    = {Lango, Mateusz  and  Brzezinski, Dariusz  and  Stefanowski, Jerzy},
  title     = {PUT at SemEval-2016 Task 4: The ABC of Twitter Sentiment Analysis},
  booktitle = {Proceedings of the 10th International Workshop on Semantic Evaluation (SemEval-2016)},
  month     = {June},
  year      = {2016},
  address   = {San Diego, California},
  publisher = {Association for Computational Linguistics},
  pages     = {126--132},
  url       = {http://www.aclweb.org/anthology/S16-1018}
}