[1]
I. Fedotova, O. Kryvoruchko, V. Shynkarenko, N. Bocharova, L. Sotnychenko, and S. Dimitrakieva, “Using the elements from a fuzzy sets theory in the process of diagnosing the loyalty of consumers of motor transport services”, EEJET, vol. 3, no. 3 (99), pp. 39–49, May 2019.