Michalski, Włodzimierz. “Diagnosing the Quality of Workplaces Using the Fuzzy Set Methods”. Studia Oeconomica Posnaniensia 1, no. 7 (August 31, 2013): s. 17–38. Accessed November 12, 2026. https://www.journals.ue.poznan.pl/soep/article/view/3244.