Authors
Grzegorz Wojnar
Faculty of Transport, Silesian University of Technology, Katowice, Poland
Michał Juzek
Faculty of Transport, Silesian University of Technology, Katowice, Poland
© 2018 Grzegorz Wojnar, Michał Juzek, published by Bialystok University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.