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- HUDEC, Miroslav. Fuzziness in information systems : how to deal with crisp and fuzzy data in selection, classification and summarization. 1st ed. Cham : Springer, 2016. xxii, 198 s. [12,46 AH]. ISBN 978-3-319-42516-0. [Copy count : 1, currently available 0, at library only 1]