@proceedings{ws-2013-approaches,
    title = "Proceedings of the 4th Workshop on Computational Approaches to Subjectivity, Sentiment and Social Media Analysis",
    editor = "Balahur, Alexandra  and
      van der Goot, Erik  and
      Montoyo, Andres",
    month = jun,
    year = "2013",
    address = "Atlanta, Georgia",
    publisher = "Association for Computational Linguistics",
    url = "http://aclanthology.org/W13-1600/"
}