MRELA, Aleksandra, SOKOLOV, Oleksandr, ŚMIGIELSKI, Grzegorz, SOKOLOV, Oleksii and UCZCIWEK, Szymon. The application of the fuzzy aggregation norms to technical staff tasks delegation. Journal of Education, Health and Sport. Online. 4 July 2019. Vol. 9, no. 7, pp. 215-227. [Accessed 20 May 2025].