1 | Department of Applied Mathematics and Informatics Faculty of Mechanical Engineering Technical University of Kosice Letna 9, 042 00 Kosice, Slovak Republic |
2 | Department of Mathematics and Theoretical Informatics Faculty of Electrical Engineering and Informatics Technical University of Kosice Letna 9, 042 00 Kosice, Slovak Republic |
3 | Logistics Institute of Industry and Transport Faculty of Mining, Ecology, Process Control and Geotechnology Technical University of Kosice Letna 9, 042 00 Kosice, Slovak Republic |