This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Irakli Abashidze
Shota Rustaveli State University, Batumi Chavchavadze 78/88, apt. 182;Batumi, Georgia
Marcin Dąbrowski
Silesian University of Technology, Faculty of Organization and Management Institute of Production Engineering ul. Roosevelt 26-28, 41-800,Zabrze, Poland