@article{Haniewicz:2014,
  author  = "K. Haniewicz and M. Kaczmarek and M. Adamczyk and W. Rutkowski",
  title   = "Sentiment analysis resources for Polish: a collaborative approach",
  journal = "International Journal of Knowledge and Learning",
  volume  = "Vol. 9",
  number  = "No. 1/2",
  pages   = "124--141",
  year    = "2014",
}