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.], jan. 2017. ISSN 2334-6043. Available at: <http://yujor.fon.bg.ac.rs/index.php/yujor/article/view/108>. Date accessed: 25 sep. 2017.