@misc{contextual+bipolarity+and+its+quality+criteria+in+bipolar+linguistic+summaries,
    author = {Dziedzic, Mateusz i Kacprzyk, Janusz i Zadrożny, Sławomir},
    title = {Contextual bipolarity and its quality criteria in bipolar linguistic summaries},
    journal = {Technical Transactions},
    address = {Kraków},
    publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>},
    date = {2013},
    number = {Y. 110, iss. 4-AC}
}