VUJOŠEVIĆ, Mirko. Book review - Fuzziness in Information Systems - How to Deal with Crisp and Fuzzy Data in Selection, Classification, and Summarization. Springer International Publishing Switzerland, 2016, written by Miroslav Hudec. Yugoslav Journal of Operations Research, [S.l.], v. 27, n. 1, p. 133, jan. 2017. ISSN 2334-6043. Available at: <>. Date accessed: 22 july 2018.